Film 2009 Cloverfield as Jenn 2007 Bobby as Angela John Tucker Must Die as Carrie 2004 Mean Girls as Regina George Television Gossip Girl as Serena VanDerwoodsen (2007-present) Shark as Megan (2007, 3 episodes) House M.D. as Ali (2006, 2 episodes) Veronica Mars as Carrie Bishop (2005, 2 episodes) Music "Somebody to Love" ... First single off forth-coming album