Triangle is the fourth studio album by American rock band The Beau Brummels. Produced by Lenny Waronker and released in July 1967, it was the band's first album to include songs that vocalist Sal Valentino and guitarist Ron Elliott composed together. The band incorporated fantasy elements and surreal characters into the album's song titles and lyrics, and worked with a variety of session musicians to create Triangle's psychedelic musical style. The Beau Brummels were reduced to a trio—Valentino, Elliott, and Ron Meagher—at the time Triangle was recorded, as former group members Don Irving (guitars) and John Petersen (drums) left the band following the release of the group's previous album, Beau Brummels '66. Triangle reached number 197 on the Billboard 200 albums chart and received mostly positive reviews; critics commended Elliott as a songwriter and compared Valentino's vocals to those of Bob Dylan. The single "Magic Hollow" was ranked one of "The 100 Greatest Psychedelic Classics" in a 1997 issue of Mojo magazine. Warner Japan released this album as WPCP-5252 in 1993. Collectors' Choice Music reissued the album in 2002.