A few weeks later, Cudi testified, his Porsche was destroyed by fire while parked in his driveway.

A prosecutor said testimony by Cudi, whose legal name is Scott Mescudi, was not expected to be lengthy.

Prosecutors allege that Combs, a three-time Grammy winner, used his fame and fortune to create a deviant empire of exploitation, coercing women into abusive sex parties while silencing victims throug...