An aidoru is a type of entertainer marketed for image, attractiveness, and personality in Japanese pop culture. Idols are primarily singers with training in other performance skills such as acting, dancing, and modeling. Idols are commercialized through merchandise and endorsements by Talent agent, while maintaining a parasocial relationship with a financially loyal consumer fan base.
Japan's idol industry first emerged in the 1960s and became prominent in the 1970s and 1980s due to television. During the 1980s, regarded as the "Golden Age of Idols", idols drew in commercial interest and began appearing in commercials and television dramas. As more niche markets began to appear in the late 2000s and early 2010s, it led to a significant growth in the industry known as the "Idol Warring Period." Today, over 10,000 teenage girls in Japan are idols, with over 3,000 groups active. Japan's idol industry has been used as a model for other pop idol industries, such as K-pop.
Sub-categories of idols include , , , idol voice actors, , , , underground idols, idols, local idols, bandols, and Japanese-Korean idol.
Rather than solely focusing on technical proficiency, idol culture emphasizes values such as sincerity, visible effort, and emotional connection between performers and fans. Emotional reciprocity and mutual validation form the core of fan-idol relationships, significantly influencing fan behaviors like attending events, purchasing merchandise, and active online interactions.
Modern idols frequently expand their activities beyond traditional singing and dancing, becoming involved in acting, modeling, and various entertainment fields. This multifaceted approach increases their opportunities for admiration and influence, strengthening their overall appeal and creating a versatile professional profile. Additionally, idols often utilize blogs and social media to display personal and relatable aspects of their lives, fostering empathy and closeness with their audience.
Events and activities that promote direct communication between idols and fans are common, providing meaningful emotional support and reinforcing fans' sense of community and pride. Such interactions not only enhance the emotional bond between idols and their supporters but also encourage ongoing engagement and participation within fan communities.
In addition to performance skills like singing, dancing, and acting, idols engage in extensive character-building activities intended to foster discipline, self-expression, and resilience. These aspects of idol training are seen not only as entry points into entertainment careers but also as meaningful experiences of personal and communal growth within Japanese popular culture.
The idol industry's structure actively encourages fans to support new idols as earlier favorites mature, perpetuating a cycle of emotional engagement, personal development, and collective identity formation within idol fandom communities.
This style of recruiting and training was pioneered by Johnny Kitagawa, the founder of Johnny & Associates, and has since been used in other pop idol industries such as in K-pop.
Anime News Network described the idol industry as highly demanding, with busy schedules that can limit time for personal life or family connections. Certain talent agencies have been criticized for withholding job assignments or notifying talents of work on short notice to discourage time off. Additionally, some agencies intentionally recruit individuals with limited experience and market them as relatable or "unfinished" figures, encouraging fans to support them as they grow. Idols are often not expected to meet the same performance standards as other professionals in their respective fields of entertainment, but they are appreciated by fans for qualities such as sincerity, effort, and emotional expression rather than for perfection.
Music from idol singers is generally categorized under J-pop, though talent agencies may label them under the sub-genre "idol pop" for further distinction. Many idol singers find success as groups rather than individually. Within each idol group, the members are sometimes given distinct roles. One example of a role is the center, who occupies the center position in the group's choreography and thus receives the most focus. Another example is the leader, usually relegated to the oldest or most experienced member in the group, who acts as an intermediary for the members and the staff.
Among many idol groups, school uniforms have been used as a standard costume. The integration of school uniforms in the idol industry originated from Onyanko Club, who debuted in 1985 with a concept based on school. Following their disbandment in 1987, other groups began adopting school uniforms as costumes, such as CoCo and Ribbon, two groups put together by Fuji TV's audition programs, followed by in 1992 and Morning Musume in the early 2000s. When AKB48 debuted in 2006, the group used a school concept and the members have performed in various stylized costumes based on school uniforms. Since then, other groups have used stylized school uniforms as costumes, such as AKB48's sister groups, Sakura Gakuin, and Sakurazaka46, with some modifications to suit the groups' image and choreography.
In 2017, Nihon Tarento Meikan noted that stylized school uniforms being used as costumes gained popularity through AKB48 due to their unique designs, the short skirts, and the neatness of the uniform. The uniforms found popularity with men, as they represent their "eternal longing" and nostalgia for high school, while only gaining popularity with women in the 2010s through anime.
The term "graduation" originated from the idol group Onyanko Club, as the group's concept drew similarities to an after-school club, and the fact that Onyanko Club member 's final solo single before retirement was released around school graduations in Japan. "Graduation" saw usage again during the revival of idol groups when Tsunku, who produced the group Morning Musume, used the term as a euphemism regarding Yuko Nakazawa's departure from the group in April 2001. As the first member to leave Morning Musume, Nakazawa's departure had gained widespread media attention at the time, with articles using the term "graduation" equally to those using "retirement." In addition, a final event was held to commemorate her time within the group. Since then, graduations became closely associated with farewell concerts, which are announced and planned in advance.
Graduations are seen as an "amicable" ending of idol activities, as they have a positive nuance of celebrating an idol's career. An idol having a graduation ceremony is seen more favorably than terminating a contract or voluntarily withdrawing, as the latter two terms are seen as "abrupt" and "covering up a secret." Contract terminations and voluntary withdrawals are negatively connoted with scandals or health concerns. Former Denpagumi.inc member Moga Mogami described the difference between graduations and withdrawals in that idols who graduate tend to leave because they have clear future goals, while idols who withdraw did not leave entirely by their own choice.
Television greatly impacted the popularity of the idol phenomenon, as beginning in the 1970s, many idols were recruited through audition programs. In addition, the availability of having home television sets gave audiences greater accessibility of seeing idols at any time compared to going to theaters. Momoe Yamaguchi, Junko Sakurada, Saori Minami, and Mari Amachi, some of the idols recruited through television, were some of the more popular figures of this era, along with groups such as Candies and Pink Lady. Saori Minami, who debuted in 1971, was noted by scholar Masayoshi Sakai to be the turning point of when teenage stars became popular in mainstream media. Music was produced by a shared climate of songwriters and art directors seeking a step towards a depoliticized youth culture. Idols grew in popularity over the 1970s, as they offered audiences escapism from political violence and radical student movements.
Idols at the time were seen as ephemeral because of how short-lived their careers were, and how they would disappear from the public after retirement. In public, idols took steps to play a distinct character and uphold an illusion of perfection, such as maintaining a virginal image. Other examples include being told not to use restrooms in public and answering interview questions about their favorite food with feminine-sounding answers such as "strawberries" and "shortcake."
Onyanko Club, in particular, shifted public perception of idols from professional stars to ordinary schoolgirls who would gain experience throughout their career. They were also the first group to introduce a "graduation system", where older members would eventually leave the group while newer inexperienced members would join, with the system being named such as the group drew similarities to a school club. Onyanko Club also led to idols becoming closely associated with television due to the popularity of their variety show, as the visual component became important to the overall enjoyment of their music.
At the same time, male idols gained popularity, with acts from Johnny & Associates normalizing idols singing and dancing at the same time. However, fewer male idol acts from other companies achieved the same success as Johnny's idols due to the company's CEO, Johnny Kitagawa, controlling the media and pressuring certain programs not to invite male idols from competing agencies, as he would continue to until his death in 2019.
More young people yielded aspirations to be defined as an artist instead of an idol. During this decline, public perception of idols again shifted from inexperienced amateurs to strong, independent women, in part due to a rehaul in Seiko Matsuda's public image. Namie Amuro, who gained fame as the lead singer of Super Monkey's, found popularity among young girls who emulated her appearance. At the same time, Speed also found a fan following. However, neither Amuro nor Speed referred to themselves under the idol label. While idols appeared less in mainstream media, the popularity of Onyanko Club from the 1980s led to an increase of idol groups with large numbers of members debuting in the 1990s, performing under independent record labels. These idols became known as underground idols. Because of the lack of publicity over idols on television, many turned to the Internet.
Johnny & Associates observed the popularity of former Shibugakitai member Hirohide Yakumaru's success as an MC on variety shows, which prompted them to develop and market their current acts with distinct public personalities. Groups from the company began gaining more attention, drawing in fans from Hong Kong and Taiwan, and their marketing success led to many other idols doing the same.
In the mid-1990s, there was an increase in young idols in the elementary school age, which the media described as the "Chidol (child idol) Boom." The term "chidol" was coined by journalist Akio Nakamori in the magazine Weekly Spa! In the 2000s, "chidol" saw fewer usage, and it was eventually replaced by the term "junior idol" to legitimize them as part of the idol industry as well as removing the focus on their age.
While idols briefly experienced another decline after 2002, AKB48 debuted in 2005 and later became known as nation's idol group. The public image of idols had diversified, with each idol group having a specific concept appealing to different audiences. To celebrate the diversity of idols, AKB48, Shoko Nakagawa, and Leah Dizon performed a medley called "Special Medley: Latest Japan Proud Culture" at the 58th Kohaku Uta Gassen in 2007, introduced as " idols" with each act described as a different sub-genre of idols.
The idol industry experienced a rapid growth in the beginning of the 2010s, and the media coined the nickname Sengoku period]] Jidai to describe the phenomenon. Lawyer Kunitaka Kasai cited the Internet as a reason for the rapid growth of idols, as anyone can upload videos onto websites, and AKB48's business model encouraged this even further through creating more opportunities for fan interactivity. The 2013 television drama Amachan also inspired more idol groups to appear, the majority of them being "local idols" who performed in specific rural communities. Several independent idol groups also crossed over into mainstream, such as Dempagumi.inc, Dorothy Little Happy, and Rev. from DVL, the latter of which gained mainstream popularity after a photo of then-member Kanna Hashimoto went viral.
Since 2010, the biggest idol concert festival, Tokyo Idol Festival, has taken place. More than 200 idol groups and about 1500 idols performed, attracting more than 80,000 spectators in 2017. During 2014, about 486,000 people attended AKB48 and Momoiro Clover Z's live concerts, which was the highest record of all female musicians in Japan. Momoiro Clover Z has been ranked as the most popular female idol group from 2013 to 2017 according to surveys by The Nikkei, There were more than 10,000 teenage girls who performed as idols in Japan in 2017. In 2019, there were over 3,000 female idol groups.
From 2013 to 2018, boy band Arashi was ranked as the most popular artist overall in Japan according to Oricon polls of 20,000 people. Other male idols also found success as underground idols, as well as anime media mix projects and 2.5D musicals.
In the early 2010s, the diversification of the idol industry led to several acts mixing pop music with other musical genres such as alternative rock and heavy metal; this was pioneered by Bis and Seiko Oomori and was given the sub-category "alternative idol" by English-speaking publications. They have also been known for utilising shock value to gain public and media attention and making use of a darker image than that of the idol scene norm.
Beginning in the mid-to-late 2010s, the Japanese idol industry crossed over with K-pop with the third Korean wave in Japan, which was sparked partially from positive reception of the Japanese members of the South Korean group Twice. In the years that followed, several Japanese and South Korean companies collaborated to form K-pop influenced groups for a global consumer base, such as Iz*One, JO1, and NiziU.
Supporting idols is often understood as an emotionally reciprocal act. Research shows that fans experience strong affective ties based on admiration, shared goals, and empathy. These dimensions are especially influential in promoting long-term support behaviors such as attending events or purchasing goods. Rather than passively consuming entertainment, fans actively participate in idols’ development through cheering, voting, gifting, and public expression of support. This contributes to a unique dynamic where idols’ growth is not only observed but co-experienced by their supporters.
A recurring theme in idol fandom is the aesthetic appreciation of “immaturity” (未熟さ) — a cultural pattern also observed in traditional arts, where audiences value the formative stages of a performer’s journey. This “growth-as-value” principle is central to the emotional structure of idol support. Fans often speak of “polishing” or “nurturing” idols, taking pride in watching them evolve from uncertain novices into confident performers.
Idol culture also fosters a strong sense of community. Fans frequently report that their engagement includes a social dimension — interacting with others who share their admiration, exchanging information, and building shared narratives around their favorite performers. According to recent mixed-method research, such social behaviors differ across subgroups of fans, but emotional involvement and the desire for connection are common across degrees of fandom.
Idols, in turn, acknowledge this dynamic by recognizing fan support as integral to their own motivation and public image. The system is sustained by mutual validation, where idols express gratitude and fans find meaning in being part of the growth narrative. These aspects make idol culture not just a commercial or entertainment practice, but a culturally embedded form of shared aspiration and emotional co-creation.
Because mainstream Japanese media exercises self-censorship over taboo, controversial subjects, fans are influential in circulating under-reported news through social media.
Idol fan culture has introduced several slang terms into the Japanese public, including:
Using idols from Johnny & Associates as an example, male idols appeal to female fans by representing a pseudo-romantic ideal for them. However, there are some female fans, particularly in Japan, who prefer to put themselves in the role of an external observer. For them, the absence of other women is a way of watching the male idols interact with one another and imagining their interactions to be similar to boys' love.
Fans spend money on merchandise and endorsed products to directly support their favorites, comparing it to spending money on "loved ones"; some express feeling happy that they were able to make someone they admired happy. Dedicated fans may give up their careers and devote their life savings to supporting and following their favorite members. To foster a closeness between idols and fans, some talent agencies offer public relations in the form of Handshake Event, where fans have the opportunity to shake hands, take a photograph, and speak briefly with the idols. AKB48's business model created more opportunities for fan interactions with their "idols you can meet" concept. An example of this are their elections, where fans can vote for their favorite member, thereby including the fans directly into the members' individual success. Because idols share an intimate relationship with their fans, fans may feel "betrayed" if idols reveal unfavorable parts of their personal lives that are different from the image they present, or break the illusion that they are there exclusively for fans.
In the early 2010s, idol-themed multimedia projects, such as Love Live!, The Idolmaster, and Uta no Prince-sama, became popular. Professor Marc Steinberg suggested that the popularity of idol-related media mix projects may stem from the managerial aspect found in life simulation games, with The Idolmaster being the first notable idol franchise to include this. These franchises set the fans in the active contributing role of the "producer" and regularly involved interactivity, as input made by the players were crucial to the idols' success. The growth of idol-related media mix projects in anime and video games was also seen as an attempt from the Japanese government to market Japanese pop culture overseas through the Cool Japan initiative. Music produced by voice actor idols and fictional idols have crossed over to mainstream music charts, with Billboard Japan launching the Billboard Japan Hot Animation Chart on December 1, 2010, exclusively for anime and video game music releases. Fictional idols have been treated like real-life celebrities. Idol-themed anime and video game series have been compared to the sports genre in anime due to a similar competitive nature and team-building the characters face, as well as being linked to the Odagiri effect for featuring attractive people of the same gender interacting with each other.
The idol fan culture is heavily tied to anime and manga, and most fans of anime are also fans of idols. The idea of "", which was popularized by anime, can be projected onto both idols and fictional characters, linking the two. Some may prefer fictional idols due to them never disbanding, leaving groups, or getting into scandals. A 2005 study by the Nomura Research Institute revealed that idol fans were the third largest group of interests, following Manga and anime.
In the late-2010s, the idol agency influenced the business model of VTuber agencies such as Hololive and Nijisanji—which focus on a mix of video game livestreaming, entertainment, and music.
Work schedules for idols have been criticized for being excessive, as idols are expected to work even when sick. Miki Gonobe from Nikkan Sports noted that idols generally do not have a labor union and agencies see no need for one, as they view idol activities akin to extracurricular activities at school. She voiced concerns about young girls becoming idols at an early age, especially elementary school students. In addition, Sasetsu Takeda of GQ Japan criticized some idol managements for intentionally preventing their talents from taking time off, mentioning it "strange" that idols are only notified of their assignments the night before. He also condemned the idol industry for not providing talents access to better mental health resources, as idols are often suspended or dismissed for publicly showing they are stressed out of concern that they may cause fans to feel worried or upset.
In March 2018, Enoha Girls member Honoka Omoto died by suicide, with her family launching a lawsuit against her talent agency in October 2018. Allegedly, Omoto was working 10 hours a day at the expense of her studies and when she had asked to leave the group, a staff member threatened her with violence while Takahiro Sasaki, the head of her managing company, told her she would have to pay a penalty fee of . In June 2018, a former member of Niji no Conquistador filed a lawsuit against Pixiv representative director, Hiroaki Nagata, and the group's management companies for voyeurism and sexual harassment during her time with the group, and Nagata filed a counter lawsuit for libel and resigned several days later. On February 10, 2020, the Tokyo District Court dismissed his claims and ordered him to pay to the woman in damages.
Several idols who were confirmed to have been dismissed, suspended, demoted, or forced to leave their groups following reports of them dating or having sexual relations include Mari Yaguchi, Ai Kago, Aya Hirano, Rino Sashihara, and Minami Minegishi. Minegishi, in particular, caught international media attention after her apology video went viral, causing international criticism over the management of her group, AKB48, as well as the Japanese idol industry. A talent agency filed a lawsuit against a 17-year-old former idol singer for accepting an invitation to a hotel room from two male fans, which had caused her group to disband within the first 3 months of their debut. In September 2015, Judge Akitomo Kojima, along with the Tokyo District Court, ruled in favor of the talent agency and fined the woman to pay , stating that the dating ban was necessary for idols to "win the support of male fans." In January 2016, a similar lawsuit filed with the Tokyo District Court ruled in favor of a 23-year-old former idol, with Judge Kazuya Hara stating that the dating ban "significantly restricts the freedom to pursue happiness."
Since handshake and other related events allow fans to be in close proximity with idols, critics also believe that marketing the idols' accessibility may cause fans to be unable to distinguish between fantasy and real life. Talent agencies have also been criticized over offering inadequate protection towards idols after several incidents of violent attacks on female idols such as the saw attack on Anna Iriyama and Rina Kawaei, the stabbing of Mayu Tomita, and the assault of Maho Yamaguchi.
In 2017, through a survey conducted by the Japanese government, 53 out of 197 women contracted with talent agencies stated that they had been asked to take part in pornographic photo or video shoots of which were not previously disclosed nor included in their contracts. 17 of the women stated that they had performed the request anyway.
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