Dan Penn is one of the major figures in soul music, composing many of the genre's standards while working at Chips Moman's American Studios in Memphis in the late 1960s. Moman was one of Penn's two key collaborators, the other being keyboardist Spooner Oldham. The latter co-wrote "I'm Your Puppet" with Penn, a song that launched their careers after James & Bobby Purify had a crossover hit with it in 1967. From there, Penn amassed an impressive songbook, co-writing James Carr's "The Dark End of the Street," Aretha Franklin's "Do Right Woman, Do Right Man, Clarence Carter's "Sli...