Season four wraps up with an explosive finale, including the return of Georgina Sparks and Constance Billard mean girls Kati and Is, a cameo by "Gossip Girl" author Cecily von Ziegesar, a performance by Airborne Toxic Event and, oh yeah, a few very juicy cliffhangers. Written by
Did You Know?
This is the 4th time Georgina (Michelle Trachtenberg
) has returned for a season finale, so she has returned for every season finale so far. See more
I really did like you.
I really did like you too.
References Death Takes a Holiday
Performed by Oh Land See more