Steve Cropper of Booker T. & The MGs reviews the jukebox's records. It could only have happened in the South in the 1960s: two white guys and two black guys playing soul music together so tightly that they could have been one person. The four -- Booker T. Jones (organ, piano), Donald "Duck" Dunn (bass), Al Jackson Jr. (drums), and Steve Cropper (guitar) -- were the house band at Stax Records in Memphis, recording nearly a thousand tracks in the funky ex-movie theater on McLemore Avenue (now a museum). They forged the definitive Southern soul sound behind Otis Redding, Carla Thomas, William Bell, Sam and Dave, Rufus Thomas, and dozens more. Donald "Duck" Dunn (bass), left; Steve Cropper (guitar), right; and Al Jackson Jr. (drums) were the house band at Stax Records in Memphis. Racial harmony at Stax suffered after Dr. Martin Luther King Jr.'s assassination, but the four continued to play together until Jackson's murder in 1975. The three surviving members often get together to back Neil Young, and Cropper and Dunn were the leaders of the band in the hit film THE BLUES BROTHERS.