Psychedelic garage rock band formed in 1965 in Los Angeles' San Fernando Valley. They reached their highest charting success in the USA in 1966 with I Had To Much to Dream Last Night (peaking at 11). They released two albums in 1967: The Electric Prunes: I Had Too Much to Dream (Last Night) and Underground. They broke up in 1968 while recording the third album, Mass in F Minor, produced by David Axelrod who completed the album using session musicians and a Canadian band, The Collectors. A fourth album, Release of an Oath, was released in 1968, also produced by David Axelrod, with session musicians backing up the vocals by The Electric Prunes.