Idols

-S CLASS- (5+ number one hits)
Amachi Mari
Asaka Yui
Checkers
Kikuchi Momoko
Koizumi Kyouko (Kyon-kyon)
Kondou Masahiko (Matchy)
Kudou Shizuka
Matsuda Seiko
Minamino Youko (Nanno)
Nakamori Akina
Nakayama Miho (Miporin)
Onyanko Club
Pink Lady
Shounen-tai
Tahara Toshihiko (Toshi)
Wink

-A CLASS- (1/2 of hits within top ten or 4 number one hits)
Iwasaki Hiromi
Kawai Naoko
Kawai Sonoko
Koyanagi Rumiko
Moritaka Chisato
Nitta Eri
Oginome Youko
Okada Yukiko (Yukko)
Saitou Yuki
Shibugaki-tai
Yakushimaru Hiroko
Yamaguchi Momoe

-B CLASS- (1/3 of hits within top ten or 3 number one hits)
Aming
Candies
Hayami Yuu
Honda Minako
Hori Chiemi
Ishikawa Hidemi
Kashiwabara Yoshie
Kikkawa Kouji
Sakai Noriko
Sakurada Junko
Tamura Eriko

-C CLASS- (1/4 of hits within top ten or 2 number one hits)
Hamada Mari
Minami Saori (Cynthia)

-D CLASS- (one top ten hit or one number one hit)
Anri
Harada Tomoyo
Ishikawa Hitomi
Itsuwa Mayumi
Iwasaki Yoshimi (Yoshirin)
Judy Ongg
Matsumoto Iyo
Mihara Junko
Mori Masako
Oota Hiromi
Takada Midzue
Yagami Junko

-E CLASS- (Worthy of mention even if their accomplishments weren't the top)
Kimoto Yuuko
Kuwata Yasuko
Okamoto Maiko