Dolly Parton

Image: Rick Diamond / Getty Images

Dolly Parton isn't just an important figure in country music, she is an American icon. A smart business woman, she built her brand from the ground up as she was savvy enough to hold onto her own copyrights for her influential songs such as "I Will Always Love You," one of the most successful songs ever.

Dolly has also ventured into the world of acting, playing roles in movies like Nine to Five and Steel Magnolias. She also began her own theme park Dollywood which celebrated its 25th anniversary last year.