The following is a list of notable events and releases that occurred in 2010 in Japanese music. January 10 – RIAJ certifies pop/dance group Exiles album Aisubeki Mirai e as a million selling album, Namie Amuros Past Future received a double platinum certification. January 13 – Pop musician Ayumi Hamasaki extends the own record for the artist with most top 10 singles, January 15 – February 12 – Hikaru Utada holds her first tour of the United States/United Kingdom, Utada, In The Flesh 2010. January 21 – The second annual CD Shop Taishō awards are announced, with The Bawdies This Is My Story, the awards are voted on by individual members of the National Japanese CD Shop Employee Union. January 22 – Voice actress Nana Mizuki reached #1 on the Oricon single charts with her single Phantom Minds, January 23 – The mother of Hello. Project/Avex musician Maki Goto, Tokiko Goto, falls from her home, the resulting funeral on January 28 is heavily publicised, with many Hello. January 29 – R&B singer Double announces her return to musical activities, January 29 – U-ka Saegusa in dB perform their final live, at Big Cat in Osaka. January 31 – The first Billboard Japan Music Awards are held in Tokyo, February 3 – One Ok Rock release their first single since their hiatus, Kanzen Kankaku Dreamer. The band went on hiatus in May 2009 due to guitarist Alexs arrest for assault, February 10 – RIAJ certifies band Ikimono-gakaris album Hajimari no Uta as double platinum album. February 15 – R&B singer Shion has her trial for possession/use of the drug ketamine and she pleaded guilty, and was given a one-year sentence, suspended for three years. February 22 – Mika Nakashimas song Always is the first song released in 2010 to receive a digital certification and it was certified gold by the RIAJ for Chaku-Uta Full for the January 2010 period. February 23 – AKB48s single Sakura no Shiori sells 318,000 copies in its first week and this record was later beaten by their single Ponytail to Chouchou. February 23 – Korean boy band Tohoshinkis first greatest hits album, Best Selection 2010 and this gives the band their first #1 album, as well as breaking the record for the highest first week sales by a foreign group. The previous record holder was Bon Jovis These Days in 1995, February 24 – The 24th Japan Gold Disc Awards are held in Tokyo. Arashi wins the domestic Artist of the Year award, making them the first Johnnys boyband to win this award, hilcrhyme wins the New Artist of the Year award. February 24 - Minori Chihara releases her eight CD single Yasashii Bōkyaku, the song won the Best Singing Award at the fifth annual Seiyu Awards held in 2011 in Tokyo for Chiharas performance. It is used as the theme to the anime film The Disappearance of Haruhi Suzumiya. March 7 – Idol group Idoling, announces five new members to their line-up, after auditions were held on March 6
Boyband Tohoshinki went on an indefinite hiatus, followed by the announcement of a three-member subunit (made of Jejung, Junsu and Yuchun).
American pop singer Lady Gaga's album The Fame becomes one of only four Western albums since 2008 to receive a multi-platinum certification.