Gossip Girl Episode 21 – Despicable B: This one is bursting with guest stars! Everyone from Liz Hurley to Billy Baldwin to New York Social Diary. Blair is disturbed to find that she may not be the ‘it’ girl anymore. This is definitely temporary! She comes up with a plan to launch her star back in the atmosphere. Nate snoops around Diana’s past and finds some skeletons that he wasn’t expecting. Watch Gossip Girl episode online NOW. ENJOY!