2014 iHeartRadio Music Festival - Night 1 - Show (Ariana Grande)

2014 iHeartRadio Music Festival - Night 1 - Show
Singer Ariana Grande (C) and rapper Childish Gambino perform onstage during the 2014 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 19, 2014 in Las Vegas, Nevada.
(Sept. 18, 2014 - Source: Christopher Polk/Getty Images North America)