Sean “Diddy” Combs reportedly made Casandra "Cassie" Ventura refer to him as “Pop Pop” — the name she called her own grandfather. Ventura, who is 17 years younger than Combs, testified in court on Tuesday, May 13, about her years-long relationship with the music mogul who's now on trial for sex-crimes and racketeering.

Lawyers on both sides of Sean Combs' sex-crimes trial delivered opening statements, and witnesses alleged the one-time mogul was violent in multiple instances.

After being chosen during jury selection just this morning, jurors have already heard opening statements and witness testimony in the trial of music mogul Sean "Diddy" Combs. Here's a recap of what happened in court today.