All Nighters

 (オールナイターズ) was a J-Pop idol group that originally lasted from 1983 to 1985. The group consisted of a rotational, all-female group of co-hosts/MCs of the Fuji TV program, All Night Fuji. Members were required to be enrolled in college, university, or another similar extended education program while they were active in the group. By the groups's disbandment in 1991, there had been over 250 members across four generations.

All first generation members left on March 31st, 1985 due to an official restructure of its parent television show. The group relaunched later that year with reduced musical activities and completely different lineup. Around 1986, the group started to transition away from only college students, and the guidelines to join became looser. Around 1988 is when the group stopped producing music completely, but still performed TV-hosting duties until All Night Fuji 's cancellation in 1991.

This group is notable for being the first large scale rotational idol unit in J-pop, as well as the first to include sub-units. Onyanko Club was also created using a slightly modified format of the All Nighters. Several early audition candidates for Onyanko Club were sourced from All Nighters.

First Generation (1983- March 1985)

 * Yamazaki Miki (山崎美貴)
 * Matsuo Hasumi (松尾羽純)
 * Fukaya Tomoko (深谷智子)
 * Kataoka Seiko (片岡聖子)
 * Inoue Akiko (井上明子)
 * Matsuyama Kaori (松山香織)
 * Tatsumi Rika (立見里歌)

Second/Third/Fourth Generation (1985-1991)

 * Sano Miwa (佐野美和)
 * Utsumi Kazuko (内海和子)
 * Suwa Yuka (諏訪有香)
 * Hiroishi Keiko (広石恵子)
 * Kamiyama Megumi (上山めぐみ)
 * Nishiyama Yuko (西山祐子)
 * Yamanobe Hiromi (﻿山野辺弘美)

Sub-Units

 * Okawari Sisters
 * Oazuke Sisters
 * Onedari Sisters
 * Otetsuki Sisters
 * Yomawari Shimai
 * ME-MIS III
 * A-cups

Spin-Offs

 * Onyanko Club (1985-1987): Originally developed as an All Nighters for a school-aged audience.

Successors

 * C-X (1987): The official successor to the First Generation of All Nighters.

Albums

 * 1) [1984.05.21] Chutto Sensation (チュッとセンセーション)
 * 2) [1984.12.21] KIRAtto Generation (KIRAっとジェネレーション)

Best Hits Albums/Compilation

 * 1) [1990.03.21] Doyou no Yoru Wa...! ~All Nighters Special~ (土曜の夜は…! 〜オールナイターズ・スペシャル〜)
 * 2) [1999.11.03] Super Compilation 〜Song・All Night Fuji (スーパーコンピレーション 〜ソング・オールナイトフジ)
 * 3) [2010.05.19] My Kore! Lite All Nighters (Myこれ!Lite オールナイターズ)
 * 4) [2011.05.25] ALL NIGHTERS GOLDEN☆BEST 〜Doyo no Yoru wa...!〜 (オールナイターズ ゴールデン☆ベスト 〜土曜の夜は・・・！〜 )
 * 5) [2017.10.25] ALL NIGHTERS LAST SELECTION (オールナイターズ LAST SELECTION) CD BOX (Also includes DVD)

Singles

 * 1) [1985.08.xx] Joshidaisei wa Makasenasai!! (女子大生にまかせなさい!!) c/w Kogoto (小言) by Yuki Susumu (結城貢) **Double A-Side
 * 2) [1985.11.21] Sailor Fuku wo Nuijyatte Kara (セーラー服を脱いじゃってから)

Trivia

 * In June 1985, it was revealed that a member of the group, Shinozaki Chie (篠崎千恵), was actually a sex worker employed at a Kabukicho massage parlor, and not a current college student. She was quickly recognized by fans, and an investigation was launched by the network. When her true background was revealed she was quickly dismissed.