A witness tells E! News the birthday girl and her posse hit up L.A. hipster nightspot Harvard and Stone. "They were having lots of drinks on the top floor of the bar and seemed to be having fun," the onlooker says of the Breaking Dawn duo.
So were Rob and Kristen dressed up for their night on the town?
Nah. "Kristen was wearing a black hoodie, black leather jacket and skinny jeans, while Rob sported an Adidas shirt and a full-grown beard," the observer says. "No one seemed to notice they were there."
The group was even treated to some special entertainment for the birthday celebrations. "The bar had a burlesque show which took place every 30 minutes and they were watching that," the eyewitness adds.
Aside from the scantily clad entertainment, Rob and Kristen were laid-back, opting to chat with their friends rather than dance to the oldies music playing in the Prohibition era-style bar.
"Kristen seemed happy to just catch up with her girlfriends," adds a witness. "She didn't dance at all. Neither did Rob. But their friends were really enjoying the music."
The Twilight couple didn't get too affectionate in front of the other clubgoers, but they did walk out holding hands around 1:30 a.m.
Not a bad way to bring in the big 2-2.