Combs’s ex Cassie Ventura testified earlier about her relationship with the rapper, and Combs’s reaction to it

Scott Mescudi, known as rapper Kid Cudi, who had a brief relationship with singer Cassandra “Cassie” Ventura in 2011, is slated to testify on Thursday in the the federal racketeering conspiracy and sex-trafficking trial of music mogul Sean “Diddy” Combs.

Combs, 55, faces charges of sex trafficking, racketeering conspiracy and transportation to engage in prostitution. He was arrested in September, and has pleaded not guilty to all charges.