Jackson started out as a songwriter and arranger for “Brother” Jack McDuff, Jimmy Witherspoon, and the Shangri-Las, among others. His songwriting credits include “It’s Easier to Cry” for the Shangri-Las, released as the B-side to “Remember (Walking in the Sand)” in 1964, and the Pretty Things‘ 1966 hit single, “Come See Me.”
He is perhaps best known for the soul hit “But It’s Alright” which, after its 1966 release, became one of the best known dance music tunes of the decade, reaching No. 22 on the Billboard chart. The single was recorded in the United Kingdom, featuring some of Britain’s top jazz musicians of the day, including Terry Smith on guitar, Dick Morrissey on tenor sax and John Marshall on drums, and who would later make up his backing band for the following two albums.