VIDEO: Katy Perry Falls Out of Chair on 'American Idol' While Dressed as Little Mermaid's Ariel

Ouch, that had to have hurt! Katy Perry tipped backwards in her chair and fell to the ground during a live moment on the latest episode of American Idol. The 37-year-old singer dressed up as Ariel from The Little Mermaid for Disney Night on Sunday (May 1) and the mishap happened at the top of [...]