Demi Lovato got three stitches to repair their forehead after smashing it on a crystal. The singer, 29, told ‘Jimmy Kimmel Live!’ on Thursday (14.07.22) she banged themself on a giant amethyst before needing medical attention. Demi, who is non-binary and changed her gender pronouns to they/them, told Jimmy, 54, while wearing what appeared to be a wig with bangs covering her injury: “So I was picking something up off the floor that I dropped and I’m a huge fan of crystals; I have this amethyst that is about this tall (motioning with their hand high above the floor.) “Anyways, I went to bend dow…