Simon & Garfunkel were an American musical duo comprising the singer-songwriter Paul Simon and the singer Art Garfunkel. They were one of the best-selling musical acts of the 1960s. Their most famous recordings include three U.S. number-one singles—"The Sound of Silence" and the two Record of the Year Grammy winners "Mrs. Robinson" and "Bridge over Troubled Water"—as well as "Homeward Bound", "I Am a Rock", "Scarborough Fair/Canticle", "A Hazy Shade of Winter", "America", "The Boxer" and "Cecilia".