2010 in Japanese music

The following is a list of notable events and releases that occurred in 2010 in Japanese music.

Currently, there are four major charts for song popularity in Japan: Oricon singles charts, Soundscan singles charts, the Billboard Japan Hot 100 and RIAJ digital tracks.

Oricon and Soundscan track sales of physical single releases, though Soundscan separates each version of the release (for example, CD+DVD and CD Only versions are tracked separately).

The Japan Hot 100 tracks song popularity based on radio airplay and physical single sales data from Soundscan.

The RIAJ digital chart tracks the most popular songs downloaded in their entirety from cellphones (Chaku-uta full).

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.
AKB48 's " Ponytail to Chouchou " becomes the biggest female idol single since 2000.