Katy Perry crawls on piano in homage to late Tawny Kitaen as rocker auditions on American Idol

American Idol: Cam Amen receives hug from Lionel Richie and last 'platinum ticket' as auditions end

‘American Idol’ Recap: The Last Platinum Ticket Is Handed Out After A Stunning Performance

Katy Perry wears camouflage bustier and matching trousers while promoting American Idol on Instagram