The Jonas Brothers and Swift will perform live in Times Square for the show, hosted by Ryan Seacrest. "American Idol" alum Kellie Pickler will act as co-host and correspondent in New York, while in Hollywood, Fergie will host performances by Natasha Bedingfield, Fall Out Boy, Jesse McCartney, Ne-Yo, the Pussycat Dolls, Solange Knowles and Robin Thicke.

No doubt Seacrest is hoping that Swift will have gotten everything off her chest about allegedly being dumped over the phone by the end of the year. And while Joe Jonas has been relatively mum about his ex's many media appearances denouncing alleged treatment of her — not to mention how much time his reported new girlfriend, Camilla Belle, has apparently been spending with "Twilight" star Robert Pattinson — the group has publicly responded to a different rumor. Last week, the Jonas Brothers denied a report that eldest brother Kevin had plans to pursue a solo career of "mature music." In a MySpace post, the guys wrote, "There is a rumor that one of us is leaving [the] group. Not true. We love what we are doing and hope to do it together for a long time."