According to the Daily Star, the US singer admitted to fancying socialite Kim Kardashian at a Hallowe'en party.

The popstar allegedly said: "I really love Kim’s butt, skin and hair. Kim is a real woman. A real horny beast."

Spears apparently made the claim during a party game in which they had to name celebrities they would like to sleep with.

She also named Carmen Electra, George Clooney, Brad Pitt, Gabriel Aubry and Eminem, say reports.

A source commented: "She was so graphic. It’s funny to hear America’s pop darling get so dirty."