Katy Perry: Bye, Music Box!

Katy Perry leaves “The Music Box” in Hollywood where she played a free show for her fans on Sunday night (October 10) in Los Angeles.

The 25-year-old singer announced on her website that she will be setting off on her biggest World tour soon and returns to Europe February 2011. “P.s. My dates in the USA, AUS & MORE are being put in soon of COURSE! Don’t you worry…” she added by Twitter.

Katy Perry and Selena Gomez are reportedly confirmed to perform at Z100′s Jingle Ball on December 10.

10+ pictures inside of Katy Perry leaving The Music Box…