Singer Rihanna thinks actor Vince Vaughn is the sexiest man alive.

The 26-year-old, who is rumoured to have reunited with former boyfriend Drake, is attracted to the "Wedding Crashers" actor, reports femalefirst.co.uk.

When asked who she thinks the sexiest man alive is, she said: "Vince Vaughn. He's amazing. Fantastic."

She also feels actress Penelope Cruz or Uma Thurman deserve to be named sexiest women.

When asked who should be named sexiest woman, she said: "Penelope Cruz is the s***. If I could wake up and look like her tomorrow, that would be great.

"Mia Wallace (Uma's 'Pulp Fiction' character) is gangsta. She's epic. I'm going to do that bob again. Those bangs," she added.