- "Stir it Up" revisits the chord pattern of Bob Marley's 1963 song "Simmer Down" and uses cooking metaphors to reference racial tension. The song was written about Marley's wife Rita. - Originally released in 1967, it was later covered by Johnny Nash in 1972 and gained international success. Marley re-recorded it for his 1973 album "Catch a Fire." - The backing track was recorded in Jamaica with The Wailers, and then overdubbed with rock musicians in London to give it a 1970s rock sound. Marley's rhythm guitar introduces the classic reggae scratch pattern while the bass, drums, and other instruments provide a deep groove.