2004

Singles

 * January 1: Sarasara no Kawa - Maeda Yuki
 * January 21: Ai Araba IT'S ALL RIGHT - Morning Musume
 * January 28: Kiseki no Kaori Dance. - Matsuura Aya
 * February 4: Aegekai ni Dakarete - Iida Kaori (debut)
 * February 11: Genki no Nai Hi no Komoriuta / Nagaragawa no Hare - Nakazawa Yuko
 * February 25:
 * Sakura Mankai - Morning Musume Sakura Gumi
 * Yuujou ~Kokoro no Busu ni wa Naranee!~ - Morning Musume Otome Gumi
 * March 3: Anata Nashi de wa Ikite Yukenai - Berryz Koubou (debut)
 * March 10: Hyacinth - Matsuura Aya
 * March 17: Sayonara no LOVE SONG - Goto Maki
 * April 21: Lucky Cha Cha Cha! - Minimoni
 * April 28: Fighting Pose wa Date ja nai! - Berryz Koubou
 * May 12: Roman ~MY DEAR BOY~ - Morning Musume
 * May 19: Koi no Vacance - W (debut)
 * May 26:
 * DO MY BEST - Nakazawa Yuko
 * Piriri to Yukou! - Berryz Koubou
 * June 2: Datte Ikitekanakucha - Abe Natsumi
 * June 9: Namida no Taiyou - Melon Kinenbi
 * July 7: Yokohama Shinkirou - Goto Maki
 * July 14: YOUR SONG ~Seishun Sensei~ - Matsuura Aya
 * July 22: Joshi Kashimashi Monogatari - Morning Musume
 * July 28: Door no Mukou de Bell ga Natteta - Iida Kaori
 * August 4: Shining Itoshiki Anata - Country Musume ni Konno to Fujimoto
 * August 11: Koi no Telephone GOAL - Abe Natsumi
 * August 18: Aa Ii na! - W
 * August 25: Happiness ~Koufuku Kangei!~ - Berryz Koubou
 * September 23: Koi no Nukegara - v-u-den (debut)
 * September 29: Nishi Shinjuku de Atta Hito - Maeda Yuki
 * October 6: Ren'ai Sentai Shitsu Ranger - Nochiura Natsumi
 * October 14: Robo Kiss - W
 * October 20: Watarasebashi - Matsuura Aya
 * October 27: Champagne no Koi - Melon Kinenbi
 * November 3: Namida ga Tomaranai Houkago - Morning Musume
 * November 10: Koi no Jubaku - Berryz Koubou
 * November 17: Sayonara "Tomodachi ni wa Naritakunai no" - Goto Maki
 * November 26: Tensai! LET'S GO Ayayamu - Matsuura Aya and Ecomoni
 * December 1: ALL FOR ONE & ONE FOR ALL! - H.P. All Stars

Albums

 * January 1: ×3 - Matsuura Aya
 * January 28: 2 Paint It Gold - Goto Maki
 * February 4: Hitoribocchi - Abe Natsumi
 * February 11: Minimoni Songs 2 - Minimoni
 * March 3: JECICA - Heike Michiyo
 * March 31: Best! Morning Musume 2 - Morning Musume
 * June 2: Duo U&U - W
 * July 7: 1st Chou Berryz - Berryz Koubou (debut)
 * July 22: Dai Nishou ~Tsuyogari~ - Nakazawa Yuko
 * December 1: THE Nimaime - Melon Kinenbi
 * December 8: Ai no Dai 6 Kan - Morning Musume
 * December 15: Morning Musume EARLY SINGLE BOX - Morning Musume
 * December 22: Petit Best 5 - Hello! Project
 * December 29: Avenir ~Mirai~ - Iida Kaori