Rarely does the son of a music idol acquire his celebrity parent’s singing voice or appearance. As a result, most offspring of great singers gravitate to other pursuits such as the arts, painting, acting, or something altogether different.
Furthermore, there are very few singers whose voices are so distinct that you can tell who they are even without music backing them up. Dolly Parton, Ozzy Osborne, and Elvis Presley are a few examples of well-known voices. Willie Nelson is another without a doubt.