Read the latest news on the Sean "Diddy" Combs' trial in New York. Cassie Ventura, Combs' ex-girlfriend, took the stand as the government's star witness.

The singer broke down crying in court as she discussed Combs' "freak offs," a term for the mogul's alleged drug-fueled sex parties. She said that they made her feel "horrible" and "worthless" but that she continued to participate for "the one-on-one time" with Combs and out of fear that the rapper would become violent or find someone new.

Cassie Ventura, a longtime girlfriend of Sean "Diddy" Combs, said she loved the hip-hop mogul and felt a sense of duty to join "freak offs."