The Mar-Keys, formed in 1958, were a studio session band for the Stax label that also recorded some influential hits on their own. Their backing music, along with Booker T. & the MG's, formed the foundation for the early 60s Stax sound, with their funky brand of soul music inspiring many other artists. Their organ and saxophone fuled singles released on their own led to a #3 national hit with "Last Night" in 1961. Keyboards on said track was notably played by Jerry Lee "Smoochy" Smith.