Katy Perry's outfit left very little to the imagination as she hit the stage at the Grammys this evening. A Katy Perry impostor kicked off the performance pretending to be Katy singing "ET," before the real pop star emerged to debut her new single, "Part of Me," wearing a latex superhero-esque costume that clung to all her curves. The latter track is being included on the extended re-release of her album Teenage Dream, which means it's not a totally new song, but she did change the lyrics — perhaps to send a message to ex Russell Brand for the award show? Katy apparently rewrote a portion of the song recently to say: "You can keep the diamond ring/It don't mean nothing anyway/In fact you can keep everything/Yeah, yeah, except for me." Katy and Russell's divorce was finalized last week, just about a month after they initially announced their split. Do you think Katy was singing about Russell tonight?
Katy's red carpet dress landed her on Fab's best dressed at the Grammy Awards poll so vote in that and all their fashion and beauty polls!