Cassie Ventura, left, and Sean “Diddy” Combs appear at the premiere of “Can’t Stop, Won’t Stop: A Bad Boy Story” on June 21, 2017, in Beverly Hills, Calif. (Photo by Chris Pizzello/Invision/AP, File)

In the 1990s and 2000s, Sean “Diddy” Combs reigned over American hip-hop. He produced chart-topping albums, launched an influential record label, recorded hit songs, inked lucrative branding deals and catapulted hip-hop into a worldwide cultural force.