Robert Pattinson Celebrates 26th Birthday With Sienna Miller (PHOTOS)

at 9:19 am | By

Rob's Shirtless Moments
Look out TLaut! RPattz is also shedding his shirt.
Robert Pattinson opted for a low key outing to celebrate his 26th birthday.

The scruffy Twilight star was dressed casually wearing a hoodie, hat and jeans as he joined friends at Claridge’s restaurant in London on May 13. The birthday boy was joined by pregnant pal Sienna Miller and Les Miserable actor Hugh Jackman.

Noticeably missing was his girlfriend, Kristen Stewart. Where was she?

Although Kristen is in London, the actress is busy promoting her latest flick, Snow White & The Huntsman. It’s possible that the camera-shy actress may have slipped in the back to avoid the paparazzi.

Up next, Pattinson heads off the Cannes for the premiere of his new film Cosmopolis. The film is about a wealthy bad boy, Eric Packer (Pattinson), who tries to get a haircut in New York City. But as he’s on his way, he encounters obstacles which keep him from getting his trim.