As Sean "Diddy" Combs' sex trafficking and racketeering trial starts in NYC, here's what to know about the key names in the case.

For more than two decades, Sean “Diddy” Combs was one of hip-hop’s most opportunistic entrepreneurs, spinning his hitmaking talents into a broad business empire that included a record label, a fashion brand, a TV network, deals with liquor companies and a key role in a reality TV show.

Prosecutors are scheduled to begin their arguments today against the rap mogul, who is accused of racketeering and sex trafficking. Here is an overview of Combs' career and the charges he faces.