Glamorous Gossip Girl star Blake Lively celebrated her 22nd birthday last night at an InStyle party atop the Cooper Square Hotel in New York City.

Here's a cool rooftop shot of the birthday girl ...

Where was Blake Lively headed after the bash?

"I'm going to a lovely dinner," she told reporters, "but it's a surprise."

We hope she had fun!

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