Gossip Girl Insider would like to wish a happy (almost belated) birthday to Michelle Christine Trachtenberg, who was born 24 years ago on the 11th of October.

Happy birthday, Michelle!

A guest star in each of the show's three seasons as the ca-ra-zy Ms. Georgina Sparks, Michelle has provided some memorable scenes and Gossip Girl quotes.

Here's a little photo tribute to the birthday girl ...

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