8. Paul Simon
As the songwriter in Simon & Garfunkel Paul Simon gave the world "The Sound of Silence," "America," "The Boxer," "Bridge Over Troubled Water," "Homeward Bound" and many other masterpieces. As a solo artist he felt more freedom to experiment, eventually crafting his world music classic Graceland in 1986. Though he's slowed down since then, next month he's releasing his new disc So Beautiful Or So What and hitting the road to support it.