Cassie attended the 'GQ Men of the Year Party' at Cheateau Marmont in Los Angeles, California.
The singer wore a sexy edgy black one shoulder Anthony Vaccarello dress.
The silhouette featured a metallic bustier, and thigh-high split.
She finished off her look with her trademark shaved head, barely there makeup, and black t-strap Jimmy
Choo peep-toe heels.