This coming Monday, "Valley Girls" takes us on a flashback to the wild '80s of Lily's youth, while the prom takes place in the present. Then, in two weeks, Gossip Girl's sophomore season comes to a gripping conclusion in "The Goodbye Gossip Girl."

Below are some photos from the season finale, in which the UES seniors bid farewell to high school amid great drama. Click to enlarge and share your thoughts!

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