Written and produced by Curtis Mayfield and released on his Curtom label, collaboration "Let's Do It Again" was originally part of the soundtrack to the film of the same name starring Jimmie "Dynamite!" Walker, Bill Cosby and Sidney Poitier (who also directed the film). The song's sexual subject matter was controversial with old school Staples fans who were rooted in the church, but the song remains in the group's canon. Mavis Staples' voice from the song was sampled in 2011 by Star Slinger, but she isn't suing: "Her manager played the remix I did and she actually liked it!" Darren "Star Slinger" Williams said with enthusiasm.
Aretha Franklin went into Atlantic Records' New York studio on Valentine’s Day, 1967, with the idea to remake the then-two-year-old Otis Redding track “Respect.” Producer Jerry Wexler brought in musicians from Fame Studios in Muscle Shoals, Alabama, and celebrated sax man King Curtis; Aretha’s sisters, Carolyn and Erma, provided backing vocals; Arif Mardin arranged and Tom Dowd engineered. Mardin summed up the feeling of the day: “I have been in many studios in my life, but there was never a day like that. It was like a festival. Everything worked just right.” Aretha and Carolyn Franklin came up with the idea to spell out the word respect in the bridge and to add the “sock it to me” chant at the end. “I fell off my chair when I heard that!” said Dowd. To clarify, that often-misunderstood line is “R-E-S-P-E-C-T, take care, T.C.B.,” where T.C.B. stands for “take care of business.”