The X Factor USA judge and former Pussycat Dolls singer was among a host of stars including Lady Gaga and Irina Shayk to strip of for the new release, Culo.

The 33-year-old, who was born in Hawaii, wears a lei and intricate body art in the shot, taken by fashion photographer Raphael Mazzucco.

The book, which is out in the U.S. today, is a collaboration between Sean 'Diddy' Combs, Interscope chairman Jimmy Iovine and Mazzucco.

It features a collection of 248 photographs to celebrate the female backside.