For the last weekend of summer, some of the biggest Top 40 acts across all genres took the stage at the iHeartRadio Music Festival. Kanye West, Kenny Chesney, Diplo, Demi Lovato and Fall Out Boy hosted small sets across two days at Las Vegas’ MGM Grand Arena. The regularly top-charting artists like…

Source: RollingStone
Link: iHeartRadio Fest 2015: See Our Best Photos