William John Clifton Haley (; July 6, 1925 – February 9, 1981) was an American singer-songwriter and musician. He was one of the first to make rock and roll music popular in the 1950s with his band Bill Haley & His Comets. He sold 25 million records worldwide with hits such as "Rock Around the Clock" (1954), "Shake, Rattle and Roll" (1954) and "See You Later, Alligator" (1956).