Rihanna is stripping it all off for "Stay," the latest single off her album Unapologetic

By stripping down, we mean both emotionally and literally: It's bath time with Ri-Ri, people.

"The video was really, really simple. I pretty much stayed put in a bathtub," she told Ryan Seacrest yesterday on the Grammys red carpet. And she wasn't lying. The moody clip features the bathing pop star completely naked (very Britney Spears-in-"Everytime," if you will) while dueting with Nashville singer Mikky Ekko