William Lawrence Mitchell was an American trumpeter, bandleader, soul, R&B, rock and roll, pop and funk record producer and arranger who ran Royal Studios in Memphis, Tennessee. He was best known for his Hi Records label of the 1970s, which released albums by a large stable of popular Memphis soul artists, including Mitchell himself, Al Green, O. V. Wright, Syl Johnson, Ann Peebles and Quiet Elegance.

Soul music is a popular music genre that originated in the African-American community throughout the United States in the late 1950s and early 1960s. It has its roots in African-American gospel music and rhythm and blues. Soul music became popular for dancing and listening, where U.S. record labels such as Motown, Atlantic and Stax were influential during the Civil Rights Movement. Soul also became popular around the world, directly influencing rock music and the music of Africa. It also had a resurgence in the mid-to late 1990s with the subgenre neo-soul, which added modern production elements and influence from hip-hop.