Reba McEntire: Cowgirl

The Oklahoma redhead started gathering cattle on the family ranch at age six. She also helped turn bulls into steers. "I would stand behind the bull and hold his tail while Daddy sliced the sack and cut the cord and let the testicles fall," she wrote in her 1994 autobiography, 'Reba: My Story.' "Daddy would pass the testicles to me and I'd put them in a bucket."