Childish Gambino, Mariah Carey & More Hit iHeartRadio Music Festival Day 1

Sin City turned into a mecca for cross-genre music superstars on Friday (September 21) when the 2018 iHeartRadio Music Festival took over the T-Mobile Arena and saw chart-toppers like Childish GambinoMariah Carey and more for Night 1 of the star-studded affair. From the Atlanta star's show-stopping moves to Jason Aldean's touching tribute to the victims of the horrific mass shooting at the Route 91 Harvest Festival, it was a full-blown spectacle that touched on each genre, with the help of host Ryan Seacrest

Relive more of the iHeartRadio Music Festival at!


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