Katy Perry Performs New Song at the Grammys

Katy Perry performed a new song, "Part of Me," at the 54th Annual Grammy Awards tonight.

Readying the release of Teenage Dream: The Complete Confection, Katy Perry recently announced that the first single from the re-issue, "Part of Me," will drop February 21. For now, though, you can listen to it over and over again below:

UPDATE: "Part of Me" is available now on iTunes!