Jessica Alba turned 33 in Vegas

Sin City star Jessica Alba celebrated her 33rd birthday in Sin City, of course.

Together with her husband Cash Warren and some friends, the actress went out for her birthday at a restaurant in Las Vegas on Friday night.

After some treats and cocktails, the party continued at a club where they danced all night and Jessica received a lavish cake.

"Confetti burst into the air (as cocktail waitresses) presented (Jessica) with a lovely three-tiered lavender birthday cake adorned with a number of pink cherry blossoms. The birthday girl jumped out of her seat to get a closer look at the cake and was joined by (Cash) as they posed for pictures" a witness said.