Demi Lovato Reveals Z100 Jingle Ball 2011 Lineup
Demi Lovato was dressed to impress as she hit the red carpet and the stage at a Z100-hosted shindig this weekend. The party was meant to kick off the buzz about the New York City radio station’s annual Jingle Ball, a holiday concert that boasts a killer lineup this year: Lovato (of course), Lady Gaga, Pitbull, Kelly Clarkson, David Guetta, LMFAO, Foster the People, Gym Class Heroes and Hot Chelle