Goldenpalace.com claims the stick the pop princess urinated on was found in the bathroom bin of an L.A. hotel where the singer had recently stayed.

Proceeds from the sale will be donated to the U.S. charities; The Candlelighter's Childhood Cancer Foundation and Easter Seal Society, which helps disabled children.

A spokesman for the online gambling emporium says Ottawa, Canada's radio station New Hot 89.9 initially purchased the test from a "connection" the station has at the unnamed hotel where the kit was found.