Following music's biggest award show, music's biggest stars let loose.
Performers including Katy Perry, Pharrell Williams, Sara Bareilles and Ciara attended the Grammys' after-parties, proving that celebrities really do know how to have a good time.
Perry met up with her boyfriend John Mayer at Sony Music Entertainment's Post-Grammy Reception at The Palm, while country star Kacey Musgraves celebrated her win at Universal Music Group's Grammys Bash at The Ace Hotel. Plus, actress Kate Beckinsale even stopped by the Warner Music Group Grammys After-Party at the Sunset Tower.
See photos from the after-parties below: