List of number-one singles of 2008 - Japan

The highest-selling singles in Japan are ranked in the Oricon Weekly Chart, which is published by Oricon Style magazine.[1] The data are compiled by Oricon based on each singles' weekly physical sales.[2] In 2008, 49 singles reached the peak of the chart.

"60s 70s 80s" is Namie Amuro's 33rd solo single under the Avex Trax label.[2] It was released in CD and CD&DVD formats on March 12, 2008, 11 months since her previous single "Funky Town", and nearly 9 months after her successful album "Play". This single continues her successful comeback, as it had her highest first week sales since 2000's Never End even at a time when CD single sales are dramatically decreasing. It became her first #1 since 1998's I Have Never Seen, and her highest selling single since 2000's Never End.

AAA, pronounced as Triple A (トリプル・エー Toripuru Ē?) and also known as Attack All Around, is a Japanese pop band signed to the label Avex Trax which debuted in September 2005. The group originally consisted of five young men and three young women who had all acted in commercials and had been dancers for other Japanese stars, such as Ayumi Hamasaki and Ami Suzuki.

Ai Ai Gasa (アイアイ傘?) is the 3rd single of the japanese duo Tegomass released on June 18, 2008 by Jonny's Entertainment. The single was used as ending theme for the anime Neo Angelique ~Abyss~. It ranked 1st on the Oricon Weekly Singles Chart and charted for 13 weeks.[1]Arashi ( lit. Storm?) is a Japanese boy band formed under the Japanese talent agency Johnny & Associates, which announced the formation of the group on September 15, 1999 in Honolulu, Hawaii.

Ayumi Hamasaki (浜崎 あゆみ Hamasaki Ayumi?, also 浜崎歩) (born October 2, 1978) is a Japanese singer-songwriter and former actress. Also called Ayu by her fans, Hamasaki has been dubbed the "Empress of Pop" due to her popularity and widespread influence in Japan.[3][4] Born and raised in Fukuoka, she moved to Tokyo at fourteen to pursue a career in entertainment. In 1998, under the tutelage of Avex CEO Max Matsuura, she released a string of modestly selling singles that concluded with her 1999 debut album A Song for ××. The album debuted atop the Oricon charts and stayed there for four weeks, establishing her popularity in Japan.[fn 1]B'z (ビーズ Bīzu?) is a Japanese hard rock duo, comprising Tak Matsumoto (松本 孝弘 Takahiro Matsumoto?, produce, composition, guitar) and Koshi Inaba (稲葉 浩志 Inaba Kōshi, lyrics, vocals)."Beautiful Days" is the twenty-fourth single from the Japanese boy band Arashi. It was used as the theme song for the drama Ryūsei no Kizuna, starring Arashi member Kazunari Ninomiya.[1]

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