This is the list of number-one singles in Japan during 1990 according to Oricon Chart.http://www.oricon.co.jp/search/result.php?kbn=js&types=rnk&year=1990
Issue date Song Artist January 1 "Christmas Eve" (クリスマス・イブ) Tatsuro Yamashita January 8 (No information) January 15 "Christmas Eve" (クリスマス・イブ) Tatsuro Yamashita January 22 "Kuchibiru Kara Biyaku" Shizuka Kudo January 29 "Midnight Taxi" Miho Nakayama February 5 "Aku no Hana" (悪の華) Buck-Tick February 12 "Kuchibiru Kara Biyaku" Shizuka Kudo February 19 "Kōya no Megaroporisu" (荒野のメガロポリス) Hikaru Genji February 26 "No Titlist" Rie Miyazawa March 5 "Kiss Me Now" (今すぐKiss Me) Lindberg March 12 "Miss Me!" (見逃してくれよ!) Kyōko Koizumi March 19 "Kiss Me Now" (今すぐKiss Me) Lindberg March 26 "1990" Complex April 2 "Kiss Me Now" (今すぐKiss Me) Lindberg April 9 "Sexy Music" Wink April 16 April 23 "Roman Hikō" (浪漫飛行) Kome Kome Club April 30 "Oh Yeah!" Princess Princess May 7 May 14 "Sayonara Jinrui" (さよなら人類) Tama May 21 "Senryū no Shizuku" Shizuka Kudo May 28 "Jealousy o nemura sete" (JEALOUSYを眠らせて) Kyosuke Himuro June 4 "Pure Gold" Eikichi Yazawa June 11 "Jealousy o nemura sete" (JEALOUSYを眠らせて) Kyosuke Himuro June 18 "Sayonara Jinrui" (さよなら人類) Tama June 25 "Taiyō no Komachi Angel" (太陽のKomachi Angel) B'z July 2 "Nichiyōbi" (にちようび) Jitterin' Jinn July 9 "Odoru Pompokolin" (おどるポンポコリン) B.B.Queens July 16 "The Point of Lover's Night" TM Network July 23 "Odoru Pompokolin" (おどるポンポコリン) B.B.Queens July 30 "Dear Friend" Akina Nakamori August 6 "Jōnetsu no bara" (情熱の薔薇) The Blue Hearts August 13 "Dear Friend" Akina Nakamori August 20 "Odoru Pompokolin" (おどるポンポコリン) B.B.Queens August 27 "Cocoro" Hikaru Genji September 3 "Odoru Pompokolin" (おどるポンポコリン) B.B.Queens September 10 September 17 September 24 October 1 "Watashi ni Tsuite" Shizuka Kudo October 8 "Time to Countdown" TMN October 15 "Easy Come, Easy Go!" B'z October 22 October 29 November 5 "Itoshii Hitoyo Good Night..." (愛しい人よGood Night...) November 12 "Emitteyo" (笑ってよ) Hikaru Genji November 19 "Mizu ni Sashita Hana" (水に挿した花) Akina Nakamori November 26 "Silent Eve" (サイレント・イヴ) Midori Karashima December 3 "Julian" (ジュリアン) Princess Princess December 10 "Silent Eve" (サイレント・イヴ) Midori Karashima December 17 December 24 "Ai wa Katsu" (愛は勝つ) Kan December 31
See also 1990 in Japanese music
References Oricon No.1 Hits 500. Clubhouse (Japanese: クラブハウス). 1998. ISBN 9784906496136. vol 2 (1986~1994).