Washington, November 26 : R&B singer Rihanna has admitted that she has a crush on `Grey''s Anatomy' star Jesse Williams.

The actor has even starred in the promo of the `Disturbia' hitmaker's new single Russian Roulette.

Rihanna made the revelation when questioned about her crushes.

"Well, there''s this actor. His name is Jesse Williams. He was in Grey''s Anatomy and I have him in my video for Russian Roulette. He''s so hot," Contactmusic quoted her as saying.

Rihanna broke up with rapper Chris Brown earlier this year after he assaulted her. (ANI)