Kiss star Gene Simmons has raised $15,000 (£10,000) for a good cause - by selling his kidney stone in a bizarre online auction.
The rock wildman reveals he recently suffered the ailment, but came up with a unique use for the solid formations of urinary minerals after passing it through his body.
He says, "I passed a kidney stone and I put it on eBay for charity. (I got) $15,000."