Joe Manganiello: Birthday Party at SLS!

Joe Manganiello arrives at Bazaar restaurant inside the SLS Hotel in Los Angeles on Thursday (December 29).

The Pittsburgh-born actor celebrated his 35th birthday with several his castmates from True Blood and the upcoming stripper flick Magic Mike.

PHOTOS: Check out the latest pics of Joe Manganiello

“The dinner for Joe looked like a lot of fun,” a spywitness tells JustJared.com. “Matt Bomer was there to support Joe – they have been good friends since college at Carnegie Mellon University.”

Later in the evening, Joe and his friends celebrated his birthday at the Roosevelt Hotel. Happy birthday, Joe!!!

“Thank you everyone for the birthday wishes!” Joe tweeted. “It’s been an awesome day!”

Also spotted going into SLS the same night: Drake, Giambattista Valli‘s Matthew Gebbert, nightlife impresario Patrick Cabido and his wife, Jenny.