MARIA SHERMAN Music Writer.

Rapper Kid Cudi is the latest celebrity being called to testify in Sean “Diddy” Combs′ sex trafficking trial. The popular melodic rapper is expected to tell the jury about his brief relationship 14 years ago with Combs’ ex-girlfriend, the R&B singer Cassie. She testified that the relationship sent Combs into a rage, and he beat her when he learned of it. Prosecutors contend that Combs arranged to have Cudi’s convertible firebombed. The Cleveland born-and-raised, Grammy-award-winning rapper has long been celebrated for his alternative hip-hop. His game-changing single “Day ‘n’ Nite (Nightmare)” is easily one of the most influential rap records of the last two decades.