Gerard Butler rocks out at star-studded birthday
Scottish actor Gerard Butler rocked out to celebrate his birthday over the weekend, performing a song with John Mayer for party guests including Kate Hudson and Jay-Z.
RELATED: Jay-Z's first book hits stores Nov. 16
The "300" star turned 41 in style on Saturday night by renting The Darby restaurant in New York and inviting 100 friends and acquaintances to help him celebrate.
Adrien Brody, U2's Bono, actor Jason Statham and professional skateboarder Tony Hawk all turned out for the event, which saw Butler take the mic to sing "Mustang Sally" with Mayer.
Butler also gave a rendition of Oasis' "Wonderwall," before Mayer sang his own hit, "Who Says," according to the New York Post.
RELATED: See more pics of Gerard
A source tells the publication, "He had a pretty good voice -- it wasn't what you'd expect from the guy from '300.' It was epic. He was also in the DJ booth a lot and got the DJ to play a lot of rock, '80s and funk."
Fergie, Sarah Jessica Parker, and Heidi Klum all get an F on this week's Fashion Offenders.Watch Video »
Diva Double Date
Beyonce and Alicia Keys double date with their famous hubbies on today's Celebs Gone Social.Watch Video »
Where Are They?
See what the cast of "American Beauty" is up to today.Watch Video »
J.Lo's Mini Me
Jennifer Lopez shares an adorable photo of her look-alike daughter, plus more celebritots on social media on today's Celebs Gone Social.Watch Video »
Prince Harry, Jessica Alba and more stars who threw out the first pitch at baseball games.Watch Video »
Sofia Vergara poses in a revealing neon bikini while her "Modern Family" castmates hit the beach in Australia on Celebs Gone Social.Watch Video »