Blake Lively had to work on her 21st birthday (August 25), but she and the rest of the Gossip Girl cast still found time to celebrate with a big bash later!

That's actor and friend James Franco (Spider-Man, Pineapple Express) on the far left, with the rest of the Gossip Girl cast (including Michelle Trachtenberg) surrounding the beautiful birthday girl - and dressed to the nines!

Blake Lively turned 21 last month and had a blast doing it!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.