Q102's Jingle Ball Show
In This Photo: Ariana Grande, Jessie J
Singers Jessie J (L) and Ariana Grande perform onstage at the Q102's Jingle Ball 2014 at Wells Fargo Center on December 10, 2014 in Philadelphia, Pennsylvania.
(Dec. 10, 2014 - Source: Michael Loccisano/Getty Images North America) more pics from this album »