Katy Perry Took A Tumble & 'Almost Accidentally Killed' Lionel Richie!!

Katy Perry goes incognito as she arrives at NYC's JFK airport hours ahead of the Met Gala

Katy Perry Wipes Out on 'American Idol' While Dressed as Ariel: Watch

Katy Perry shares hilarious behind the scene snaps flashing her pants in a mermaid tail