Rihanna denies Josh Hartnett romance

Rihanna has denied a romance with Josh Hartnett on Ryan Seacrest's KIIS-FM radio show.

Last Week , US reports that Rihanna was sipping P.I.N.K. vodka while making out with Josh Hartnett.

Rihanna explains:

"I met him at TRL. I was a cohost, and he was one of the guests. We hung out after at Pink Elephant...They put in the paper that we were drinking P.I.N.K. Vodka. That whole thing was just a promotion for Pink Elephant because of the special vodka they have there. Of course they put we were making out, but none of the above."

When the 19-year-old was asked if she was playing around on 29-year-old Hartnett's lap, Rihanna says: "Not on his lap! Why would I sit on his lap?!"