Otis Redding and Carla Thomas: “Tramp”, (1967) (written by Lowell Fulson and Jimmy McCracklin). From King and Queen.
Some observations: 1) at 0:10, I love how Otis says “It makes me feel good to know one thing” in time with the beat. I think he may have accidentally invented hip-hop in those three seconds;
2) the Stax band is in 100% rock-solid form here. They prove on this track over and over that the most important thing for any ensemble is coming in EXACTLY together on entrances. Volume is 20% loudness and 80% timing, my old band teacher always said, and he’s exactly right;
3) This song is the best.