Gossip Girl - Season 4 Episode 7
Blair is caught off-guard – and not in a good way – by a surprise guest at her birthday party. Having had enough of Chuck and Blair’s games, Serena and Nate decide to plan an intervention.
First Air Date : 2007-09-19
Last Air date : 2012-12-17
Runtime : 57 minutes
Cast : Blake Lively, Leighton Meester, Penn Badgley, Chace Crawford, Ed Westwick, Kaylee DeFer
Crew : Jessica Queller (Co-Executive Producer), Cecily von Ziegesar (Novel), Stephanie Savage (Executive Producer)
Quality : 
Subtitles :
- Season 4 : Episode 12010-09-13
- Season 4 : Episode 22010-09-20
- Season 4 : Episode 32010-09-27
- Season 4 : Episode 42010-10-04
- Season 4 : Episode 52010-10-11
- Season 4 : Episode 62010-10-25
- Season 4 : Episode 72010-11-01
- Season 4 : Episode 82010-11-08
- Season 4 : Episode 92010-11-15
- Season 4 : Episode 102010-11-29
- Season 4 : Episode 112010-12-06
- Season 4 : Episode 122011-01-24
- Season 4 : Episode 132011-01-31
- Season 4 : Episode 142011-02-07
- Season 4 : Episode 152011-02-14
- Season 4 : Episode 162011-02-21
- Season 4 : Episode 172011-02-28
- Season 4 : Episode 182011-04-18
- Season 4 : Episode 192011-04-25
- Season 4 : Episode 202011-05-02
- Season 4 : Episode 212011-05-09
- Season 4 : Episode 222011-05-16
