Z100's Jingle Ball was all for the young

From left, Louis Tomlinson, Harry Styles, Niall Horan,

From left, Louis Tomlinson, Harry Styles, Niall Horan, Liam Payne and Zayn Malik of One Direction perform onstage during Z100's Jingle Ball 2012, presented by Aeropostale, at Madison Square Garden in Manhattan. (Dec. 7, 2012) (Credit: Getty Images)