Making for another star-studded stop on the annual holiday tour, the stars converged on Madison Square Garden for Z100's 2011 Jingle Ball on Friday night (December 9).
Headlining the event was Lady Gaga, who treated the packed audience to renditions of her hit songs and holiday classics including "Born This Way," "Marry the Night" and "White Christmas" as she danced around a Christmas Tree laden backdrop.
Another highlight of the evening saw Kelly Clarkson team up with Demi Lovato for a not to be missed duet of "Have Yourself a Merry Little Christmas".
With Khloe Kardashian helping host the MSG event, the 2011 Jingle Ball, other performers included Pitbull, Gym Class Heroes, David Guetta, Foster the People, LMFAO and Hot Chella Rae while Ali Brustofski as honores as the Hometown Hero.
Lady Gaga "Born This Way"
Lady Gaga "White Christmas"
Kelly Clarkson and Demi Lovato "Have Yourself a Merry Little Christmas"