Underground (Thelonious Monk album)

Underground
Studio album by
ReleasedMay 1968
RecordedDecember 14 and 21, 1967; February 14, and December 14, 1968
GenreJazz
Length37:23 (1:11:04 on Special Edition)
LabelColumbia
ProducerTeo Macero
Thelonious Monk chronology
Straight, No Chaser
(1967)
Underground
(1968)
Monk's Blues
(1968)
Professional ratings
Review scores
SourceRating
AllMusic
DownBeat
The Penguin Guide to Jazz Recordings
The Rolling Stone Jazz Record Guide

Underground is the seventh studio album that Thelonious Monk recorded for Columbia Records. It features Monk on piano, Larry Gales on bass, Charlie Rouse on tenor sax, and Ben Riley on drums. This is the last Monk album featuring the Thelonious Monk Quartet. Its cover image depicts Monk as a French Resistance fighter in the Second World War, an homage to longtime patroness and friend Pannonica de Koenigswarter, who had served in the resistance, and whose likeness also appears on the cover.