Live at Jingle Ball 2012
Taylor Swift, the Jonas Brothers, Ellie Goulding and more hit the Nokia Theatre in Los Angeles

Taylor Swift performs at KIIS FM's Jingle Ball at the Nokia Theatre on Saturday December 1st, 2012 in Los Angeles, California.
Joseph Llanes for iHeartRadio
Justin Bieber at KIIS FM's Jingle Ball at the Nokia Theatre on Monday, December 3rd, 2012 in Los Angeles.