Blake Lively and Leighton Meester got together in NYC to shoot Gossip Girl yesterday morning. Leighton was able to share her time in front of the camera with Hugo Becker, who's making a return as her royal love interest, as Blake shot her scenes solo. In addition to her cute costar, Leighton had another reason to smile after her new movie The Roommate took top spot at the weekend box office. She was especially busy over the last few weeks promoting the film on the West Coast and also in the Big Apple, so all of her and costar Minka Kelly's hard work seems to have paid off. Blake, meanwhile, hasn't been ignored when it comes to accomplishments — she was recently ranked number one on a list of the world's most desirable women. Serena and Blair were both tied up in the drama of last night's new episode so check out Buzz's top OMG moments and let us know what you think!