Belladonna, born Michelle Anne Sinclair on May 21, 1981, in Biloxi, Mississippi, grew up in a Mormon family as one of seven children, with German, Cherokee, and Scottish ancestry. Raised across states like Utah, Virginia, and Germany, she moved to Salt Lake City at 15, where she was a cheerleader, gymnast, and concert choir member at Highland High School. At 18, she began stripping at local clubs and entered the adult film industry in 2000 after meeting a porn star in Los Angeles.
