The saucy singer strips nude, wearing just a white wig and provocative pink headband, in California Gurls.
With a wink and a smile, the U.S. star is seen floating in a cloud in a Bruce Almighty-inspired pose.
In another sequence she cheekily wears a bikini embellished with iced buns, apparently channelling 2003 film Calendar Girls, which sees a group of women pose provocatively with household goods.