Anaheim, December 3 – Paris Hilton sure gets around. Despite telling MTV recently that she’s “in the studio every day now” finishing her debut album, Paris was at GQ’s Men of the Year awards in L.A. on Thursday, then was a surprise guest Friday evening at the KIIS FM Jingle Ball. Maybe Paris hitched a ride with Pharrell Williams, who was at also at both events? Paris didn’t stay for the entire concert, because she headed to her fragrance launch party, which was also Friday night in Hollywood.

A promised surprise “pop superstar” performer at Jingle Ball was Anaheim native Gwen Stefani, who was visiting her family nearby. She reminisced about watching the Arrowhead Pond venue being built while growing up there, and said she wanted to do her first live concert as a solo artist in her hometown.

Christina Milian got onstage holding a pit bull puppy she said was one of her early Christmas gifts. No mention of who it was from. Stevie Wonder, Snoop Dogg, Avril Lavigne, Alicia Keys, Ashlee Simpson, Maroon 5 and JoJo also took the stage.