 creators Josh Schwartz and Stephanie Savage.The series follows the lives of the young, wealthy, and social elite residing in the Upper East Side of Manhattan, and is narrated by an unseen and seemingly omniscient character, "Gossip Girl", whose blog is widely read among the characters.A total of 121 episodes of "Gossip Girl" were aired over six seasons, between September 19, 2007, and December 17, 2012.