Episode Synopsis: Jenny (Taylor Momsen) returns to Constance Billard to take her rightful place as the new Queen Bee. Unfortunately for Jenny, Blair (Leighton Meester) is more than happy to intervene when news reaches her that she may be needed back at Constance. Lily (Kelly Rutherford) returns home to Rufus (Matthew Settle) and her family to find that things are definitely not as she left them. A famous movie actress, Olivia Burke (guest star Hilary Duff), enrolls at NYU - and is assigned to be Vanessa's (Jessica Szohr) roommate - hoping for a somewhat normal college experience. Tyra Banks guest stars as Ursula, an actress co-starring in Olivia's movie and someone who Serena (Blake Lively) befriends.