If not the most influential guitarist in the Memphis soul music scene, Steve Cropper is definitely near the top. He was a member of 'Booker T & the M.G.s', wrote songs for and performed with Otis Redding, Aretha Franklin and Sam & Dave (he's the Steve referred to when they say "Play it, Steve!" in "Soul Man"). Booker T's band, including Cropper, was enlisted as the backup band for Blues Brothers John Belushi and Dan Aykroyd in both of the "Blues Brothes" movies.