Her latest album isn't the only thing "Rated R" right now.
The "We Found Love" singer, 24, paired the shocking look with ripped jeans and unlaced boots for dinner at a posh Italian restaurant.
Rihanna seems to be having a hard time covering up these days. She posted a topless photo of herself on Twitter last week, along with the caption "Where have you been all my life?" And during a recent trip to London she made news for wearing provocative thigh-high leather boots and a slinky, plunging dress.
Tell Us: What do you think of Rihanna’s sheer top?