MIAMI, FL - DECEMBER 21: Ariana Grande performs onstage during Y100's Jingle Ball 2014 at BB&T Center on December 21, 2014 in Miami, FL. (Photo by Larry Marano/Getty Images for iHeartMedia)
MIAMI, FL - DECEMBER 21: Ariana Grande performs onstage during Y100's Jingle Ball 2014 at BB&T Center on December 21, 2014 in Miami, FL. (Photo by Larry Marano/Getty Images for iHeartMedia)