Plot: Ryan Seacrest, Jenny McCarthy and Fergie reprised their roles as host, Times Square reporter and Hollywood host, respectively. Carly Rae Jepsen, Neon Trees, Psy with MC Hammer, and Taylor Swift performed live in Times Square, while the Hollywood segments of the show included performances by Brandy, Flo Rida, Ellie Goulding, Jason Aldean, Justin Bieber, Karmin, OneRepublic, Pitbull and The Wanted