The R&B singer Cassie gave uncomfortable testimony Tuesday during the sex trafficking trial of music mogul Sean “Diddy” Combs,” detailing allegations of physical abuse and control that included dayslong,

A singer, actor, dancer and model, Cassie's professional ambitions began in adolescence, when she signed to the top-tier talent and modeling agency Wilhelmina.

Prosecutors told jurors that, for years, Combs used his status as a powerful executive to coerce women into abusive sexual encounters and became violent if they refused.