Recorded in 1957, this album was the result of a collaboration of Thelonious Monk with Art Blakey and the Jazz Messengers.
- "Evidence" (composed by Monk)
- "In Walked Bud" (Monk)
- "Blue Monk" (Monk)
- "I Mean you" (Monk & Coleman Hawkins)
- "Rhythm-A-Ning" (Monk)
- "Purple Shades" (Johnny Griffin)
It was produced by Nesuhi Ertegün and the sound engineering was by Earl Brown.