Artist accuses SF9 and Katy Perry of stealing his artwork

CLC impress with their live cover of Adele, Maroon5, and Katy Perry + help raise money for disabled children

Girls' Generation snaps a photo with Katy Perry!

LUNAFLY let out a 'Roar' in cover of Katy Perry's hit

LEDApple's Hanbyul sings Katy Perry's 'Roar' and takes you behind-the-scenes of 'Music Note'

Psy gets a kiss on the cheek from Katy Perry at '2012 MTV Video Music Awards'?

Big Bang members snap a photo with Katy Perry

Wonder Girls' comeback is styled by Katy Perry's designer, Johnny Wujek

Navi covers Katy Perry's "I Kissed a Girl"

The Wonder Girls pose with Katy Perry at MTV World Stage

Navi covers Katy Perry on KJE's Chocolate

Big Bang shows off their Japanese Skills on MTV VMA Japan