Leighton Meester

Our favorite, once-inseparable celebrity besties and their unfortunate fallouts.

Catch up with your favorite teen TV stars from the 2000s.

These TV co-stars did a really good job pretending they didn't hate each other once the cameras were rolling.

What?  No warning from Gossip Girl?  Actors Leighton Meester and Adam Brody had kept their wedding plans quiet since becoming engaged three months ago, and that plan seems to have worked.  Reports say the couple was able to dodge the watchful paparazzi eye and say 'I Do' on the down low.