Rihanna turned up on American Idol last night to sing her new hit ballad "California King Bed." It's a classy, laid-back performance with Rihanna in a lovely gown, backed up by interpretative dancers caressing large pieces of fabric that are probably meant to evoke bed sheets, but look a bit more like giant strips of toilet paper hanging from the ceiling. But either way, this is quite nice.

Rihanna Opens Up Like Never Before in Rolling Stone Cover Story