Fox is of Irish, French and Native American ancestry, and was born in Oak Ridge, Tennessee to Darlene and Franklin Fox. She was raised as a Roman Catholic and attended Catholic school for 12 years. Fox's parents divorced when she was young and she and her sister were raised by her mother and her stepfather, Tony Tonachio. She said that the two were "very strict" and that she was not allowed to have a boyfriend or invite friends to her house. She lived with her mother until she made enough money to support herself.