DateTitleAmazonOriconNote
1980/04/01Hadashi no Kisetsu12
1980/07/01Aoi Sangoshō2
1980/10/01Kaze wa Akiiro/Eighteen1
1981/01/21Cherry Blossom1
1981/04/21Natsu no Tobira1
1981/07/21Shiroi Parasol1
1981/10/07Kaze Tachinu1
1982/01/21Akai Sweet PeaJP1
1982/04/21Nagisa no Balcony1
1982/07/21Komugiiro no Mermaid1
1982/10/21Nobara no Etude1
1983/02/03Himitsu no Hanazono1
1983/04/27Tengoku no Kiss1
1983/08/01Glass no Ringo/Sweet MemoriesJP1
1983/10/28Hitomi wa Diamond/Aoi Photograph1
1984/02/01Rock'n Rouge1
1984/05/10Jikan no Kuni no Alice/Natsufuku no Eve1
1984/08/01Pink no Mozart1
1984/11/01Heart no Earing1
1985/01/30Tenshi no Wink1
1985/05/09Boy no Kisetsu1
1985/06/24DANCING SHOES1
1987/04/22Strawberry TimeJP1
1987/11/06Pearl-White Eve1
1988/04/14Marrakech1
1988/09/07Tabidachi no Freesia1
1989/11/15Precious HeartJP2
1990/04All the way to HeavenUK only
1990/07/15The Right Combination28duet with Donnie Wahlberg
1990/10/01who's that boyUS only
1990/11/21We Are LoveJP16
1992/02/05Kitto, Mata Aeru...JP4
1992/08/01Anata no Subete ni Naritai/Shinin' Shinin'JP31
1993/04/21Taisetsu na AnataJP7
1993/05/21A Touch of DestinyJP51
1993/11/10Kakowareta, Ai-jingJP63
1994/05/11Mō Ichido, Hajime karaJP22
1994/12/01Kagayaita Kisetsu e TabidatōJP12
1995/04/21Suteki ni Once againJP22
1996/04/22Anata ni Aitakute (Missing You)/Ashita e to Kakedashite YukōJP1
1996/04/24Let's Talk About ItJPunreleased in Japan
1996/05/17I'll Be There For YouUSJP35duet with Robbie Nevil
1996/11/18Sayonara no ShunkanJP5unreleased in Japan
1996/12/10Good For You
1997/04/23Watashi Dake no Tenshi (Angel)/Anata no Sono Mune niJP5
1997/12/03Gone with the RainJP28
1998/06/17Koisuru Omoi (Fall In Love)JP34
1998/11/26Touch the LOVEJP66
1999/10/27Kanashimi no BoatJP27
2000/05/1720th Party17
2000/06/07Shanghai Love Song37
2000/06/14Unseasonable Shore35
2000/09/27True Love Story/Sayonara no Kiss o Wasurenai7duet with Hiromi Go
2000/11/29The Sound of Fire46
2001/06/20Anata Shika Mienai30
2001/11/14Ai Ai Ai (100% Pure Love)JP49
2002/06/05Suteki na AshitaJP29
2002all to youBillboard Dance Chart 19th, unreleased in Japan
2002/12/17just for tonightJPBillboard Dance Chart 15th, unreleased in Japan
2003/06/04Call MeJP17
2004/05/26Aitai12
2004/07/07Smile on MeJP18duet with Crazy.T (Takaaki Ishibashi)
2005/02/02Eien Sae Kanjita YoruJP34
2005/08/24I'll Fall In LoveUSJP30
2005/09/21Shiawase na KimochiJP28
2006/04/26bless youJP29
2006/05/24WE ARE.JP
2007/05/23Namida ga Tada KoborerudakeJP38
2007/08/01Manatsu no Yo no YumeJP36duet with Takashi Fujii
2007/11/21Christmas no YoruJP34
2008/03/19Hanabira Mau Kisetsu niJP32
2008/06/25Love Is AllJP32
2008/10/22Ano Kagayaita KisetsuUSJP30
2010/04/21Idol Mitai ni UtawaseteJP16as Princess Seiko with Yazima Beauty Salon
2010/05/05Ikutsu no Yoake o KazoetaraJP12
2011/11/23Tokubetsu na KoibitoJP14co-produced with Mariya Takeuchi
2012/05/02Namida no ShizukuJP20
2013/05/22Lulu!!USJPcomposed by Chara
2013/10/30Yume ga SameteUSJP14duet with Christ Hart