Bruno Mars performs "Perm" at the BET Awards at the Microsoft Theater in Los Angeles. Mars is a BottleRock festival headliner.
Bruno Mars performs "Perm" at the BET Awards at the Microsoft Theater in Los Angeles. Mars is a BottleRock festival headliner. Matt Sayles Invision/AP
Bruno Mars performs "Perm" at the BET Awards at the Microsoft Theater in Los Angeles. Mars is a BottleRock festival headliner. Matt Sayles Invision/AP