By Mackenzie Cummings-Grady 50 Cent trolls Diddy over allegedly traumatizing Kid Cudi‘s dog and lighting his car on fire. On Thursday, Kid Cudi arrived in Manhattan to testify against Diddy in the disgraced mogul’s ongoing criminal trial.

Kid Cudi, whose real name is Scott Mescudi, was called as a witness by the prosecution. Mescudi, the "Pursuit of Happiness" rapper, was once in a brief relationship with Combs' ex, Casandra "Cassie" Ventura .