Britney Spears' USED CHEWING GUM?! William Shatner's KIDNEY STONE?! John Lennon’s TOOTH?! You won't believe the strange celebrity items sold at auction...

Celebrity memorabilia is a BIG seller, and the value of these items goes up and up. But it's not just signature guitars and stage outfits being sold, oh no. Over the years fanatics have bought used gum, chest X-rays, kidney stones and more! These are 10 of the strangest celebrity auctions EVER...