The 55-year-old hip-hop mogul has been charged by federal prosecutors with sex trafficking, racketeering conspiracy and transportation to engage in prostitution.

Rapper Kid Cudi is set to testify Thursday at the New York sex trafficking trial of Sean “Diddy” Combs after one of the music mogul’s ex-aides finishes telling the jury about the threatening world he recalls encountering when he worked for Combs.

On the surface, rapper Kid Cudi and music mogul Sean ‘Diddy” Combs appear to have a few things in common. Both lost their fathers when they were young and have praised their mothers for their strength as single parents.