Un Poco Loco is an instrumental composition by the American jazz pianist Bud Powell and is one of the standards of Afro-Cuban jazz. It is written in a 32-bar form and uses the Lydian scale, with overlapping chords that imply polytonality, such as a D major 7 chord sounding over C major 7. The Bud Powell Trio, with Curly Russell on bass and Max Roach on drums, recorded it for Blue Note Records on 1 May 1951, produced by Alfred Lion. It was released that year as a single, with "It Could Happen to You" on the B-side, and later appeared on the album The Amazing Bud Powell, Volume One. The recording runs 4:42. In the late 1980s the literary critic Harold Bloom named it among the most "sublime" works of twentieth-century American art. Notable later versions include those by Johnny Smith (1955), Shelly Manne (1956), Chet Baker (1977), Bobby Hutcherson (1980) and Tito Puente (1987).
