Katy Perry Turned Down WHAT?

Word has it that Katy Perry turned down a multi-million dollar deal to be a judge on "American Idol".

The singer reportedly gave the thumbs-down to a yearlong contract worth $20 million, a source told Us Weekly.

This would have topped Mariah Carey's $18 million paycheck for judging on "Idol", making her the highest-paid judge on any talent show.