Gossip Girl (2007-12) - Series 4: 19. Petty In Pink

Name: Gossip Girl (2007-12) - Series 4: 19. Petty In Pink
Description: Serena enlists Charlie to go undercover, Gossip Girl-style, to determine why Dan and Blair are spending so much time together

Serena enlists Charlie to go undercover, Gossip Girl-style, to determine why Dan and Blair are spending so much time together