K-ON!! Official Band Yarouyo!! ~Let's MUSIC!! 3~ (「けいおん!!」オフィシャル 「バンドやろーよ!! 〜Let's MUSIC!!3〜」 K-ON!! Official Band Yarouyo!! ~Let's MUSIC!! 3~) is a collective album of the band Ho-Kago Tea Time, containing various alternative versions of previous songs, instrumental versions and background music which was not featured on the "Original Soundtrack Albums". The album was released on the 22nd of December 2010 in Japan by Pony Canyon.