Based (very loosely) on Cecily von Ziegesar's book series, "Gossip Girl" started its run on The ... for a while at this point while he sells "Inside," a scandalous tome based on his friends.

Based on author Cecily von Ziegesar's book series of the same name, the original Gossip Girl ran for six seasons from 2007 to 2012. The series centered on the drama-filled lives of rich teens ...