Rolling Loud's SoCal debut underscore's hip-hop's cultural dominance

Gucci Mane performs on the main stage at the Rolling Loud music festival held at the NOS Events Center, in San Bernardino, Calif., Dec. 16, 2017. Gucci Mane performs on the main stage at the Rolling Loud music festival held at the NOS Events Center, in San Bernardino, Calif., Dec. 16, 2017.