Question: Which Los Angeles formed American rock and pop band stared in the 1968 musical Head?

full_context: Document 1: The Beatles: The Beatles were an English rock band formed in Liverpool in 1960. With members John Lennon, Paul McCartney, George Harrison and Ringo Starr, they became widely regarded as the foremost and most influential act of the rock era. Rooted in skiffle, beat and 1950s rock and roll, the Beatles later experimented with several musical styles, ranging from pop ballads and Indian music to psychedelia and hard rock, often incorporating classical elements and unconventional recording techniques in innovative ways. In 1963 their enormous popularity first emerged as "Beatlemania", and as the group's music grew in sophistication in subsequent years, led by primary songwriters Lennon and McCartney, they came to be perceived as an embodiment of the ideals shared by the counterculture of the 1960s.
Document 2: Premonition (1972 film): Premonition (also known as Head or The Impure) is a 1972 film written and directed by Alan Rudolph. The film was Rudolph's first after being an assistant director of 11 episodes of the 1960s sitcom "The Brady Bunch", as well as the films "The Big Bounce" (1969) and "Riot" (1969). Originally titled "Head", the distributors first changed the title to "Premonition" and later for a time to "Impure".
Document 3: List of songs recorded by the Monkees: This list is an attempt to document every song released by American-British pop rock band The Monkees. It does not include songs released only separately by the individual members. Lead vocals by the official members of the group (Micky Dolenz, Davy Jones, Michael Nesmith and Peter Tork) are listed by first name only.
Document 4: A Hard Day's Night (film): A Hard Day's Night is a 1964 British musical comedy film directed by Richard Lester and starring the Beatles—John Lennon, Paul McCartney, George Harrison, and Ringo Starr—during the height of Beatlemania. It was written by Alun Owen and originally released by United Artists. The film portrays several days in the lives of the group.
Document 5: The Mamas &amp; the Papas: The Mamas & the Papas were an American folk rock vocal group that recorded and performed from 1965 to 1968, reuniting briefly in 1971. The group was composed of John Phillips, Denny Doherty, Cass Elliot, and Michelle Phillips "née" Gilliam. Their sound was based on vocal harmonies arranged by John Phillips, the songwriter, musician, and leader of the group who adapted folk to the new beat style of the early sixties.
Document 6: Tear Drop City: Tear Drop City is a single by The Monkees released on February 8, 1969 on Colgems #5000 recorded on October 26, 1966. The song reached No. 56 on the Billboard chart. The lyrics are about a man who feels low because his girlfriend has left him. Written by Tommy Boyce and Bobby Hart, it was the first single The Monkees released as a trio (Micky Dolenz, Michael Nesmith, and Davy Jones; Peter Tork departed December 1968). Micky Dolenz performed the lead vocal. Boyce and Hart produced and arranged the song.
Document 7: Ain't That a Kick in the Head?: "Ain't That a Kick in the Head?" is a pop song written in 1960 with music by Jimmy Van Heusen and lyrics by Sammy Cahn. It was first recorded on May 10, 1960, by Dean Martin in a swinging big band jazz arrangement conducted by Nelson Riddle. Martin performed the song in the 1960 heist film "Ocean's 11" in an alternate arrangement featuring vibraphonist Red Norvo and his quartet.
Document 8: Candy (1968 film): Candy is a 1968 sex farce film directed by Christian Marquand based on the 1958 novel by Terry Southern and Mason Hoffenberg, from a screenplay by Buck Henry. The film satirizes pornographic stories through the adventures of its naive heroine, Candy, played by Ewa Aulin. It stars Marlon Brando, Ewa Aulin, Richard Burton, James Coburn, Walter Matthau, Ringo Starr, John Huston, John Astin, Charles Aznavour, Elsa Martinelli and Enrico Maria Salerno. Popular figures such as Sugar Ray Robinson, Anita Pallenberg, Florinda Bolkan, Marilù Tolo, Nicoletta Machiavelli and Umberto Orsini also appear in cameo roles.
Document 9: Micky Dolenz: George Michael Dolenz, Jr. (born March 8, 1945) is an American actor, musician, television director, radio personality and theater director, best known as a vocalist and drummer of the 1960s pop/rock band the Monkees.
Document 10: Deadhead Miles: Deadhead Miles is a 1973 American road comedy film directed by Vernon Zimmerman from a script by Terrence Malick, and starring Alan Arkin. George Raft and Ida Lupino make cameos.
Document 11: Live! (The Monkees album): Live! is a CD live set by the Monkees recorded during their successful 20th Anniversary Tour in 1986. To date, it is the only known complete concert recorded during this era. The original copies of the recording were available at tour stops in double-LP and cassette formats, titled "Davy Jones / Micky Dolenz / Peter Tork: 20th Anniversary Tour" (no mention of the name "Monkees" on the cover, save for the band's logo visible at the back of the stage). The CD was a limited edition release, and was available via the group's fan club in Nashville.
Document 12: Bob &amp; Carol &amp; Ted &amp; Alice: Bob & Carol & Ted & Alice is a 1969 American comedy drama film directed by Paul Mazursky, written by Paul Mazursky and Larry Tucker, who also produced the film, and starring Natalie Wood, Robert Culp, Elliott Gould, and Dyan Cannon. The original music score was composed by Quincy Jones, and featured Jackie DeShannon performing Burt Bacharach and Hal David's "What the World Needs Now Is Love" and Sarah Vaughan performing "I know that my Redeemer liveth" from Part III of Handel's "Messiah". The cinematography for the film was by Charles Lang. The film received four Academy Award nominations, including ones for Gould and Cannon.
Document 13: The Monkees: The Monkees are an American rock and pop band originally active between 1965 and 1971, with subsequent reunion albums and tours in the decades that followed. They were formed in Los Angeles in 1965 by Bob Rafelson and Bert Schneider for the American television series "The Monkees", which aired from 1966 to 1968. The musical acting quartet was composed of Americans Micky Dolenz, Michael Nesmith and Peter Tork and British stage and television actor and singer Davy Jones. The band's music was initially supervised by producer Don Kirshner, backed by the songwriting duo of Tommy Boyce and Bobby Hart.
Document 14: Head (film): Head is a 1968 American satirical musical adventure film written by Jack Nicholson and Bob Rafelson, directed by Rafelson, starring television rock group The Monkees (Davy Jones, Micky Dolenz, Peter Tork and Michael Nesmith), and distributed by Columbia Pictures.
Document 15: Dolenz, Jones, Boyce &amp; Hart: Dolenz, Jones, Boyce & Hart is an album by the group of the same name, released in 1976. The group consisted of Micky Dolenz, Davy Jones, Tommy Boyce and Bobby Hart. Dolenz and Jones had been members of 1960s pop group/band The Monkees while Boyce and Hart had written many of the group's biggest hits such as "Last Train to Clarksville" and "(Theme from) The Monkees". As such, several publications, such as Allmusic, consider the album to be a Monkees-reunion album. Most of the musicians that appear on this album were featured on Monkees albums in the past. A majority of the vocals are done by Dolenz and Jones ("Right Now", "I Remember The Feeling", "You And I") with Boyce And Hart contributing backing vocals and the occasional lead vocal such as Hart's on "I Love You [And I'm Glad That I Said It]". Although the album failed to make much of an impact when originally released, renewal of interest in The Monkees led to its reissue on compact disc years later. The group was called Dolenz, Jones, Boyce & Hart because they were legally prohibited from using The Monkees name. Former Monkees members Michael Nesmith and Peter Tork were also invited to join the group, but they both declined. Peter Tork joined 'Dolenz, Jones, Boyce, & Hart' onstage for a guest appearance on their concert tour on July 4, 1976 in Disneyland. Later that year he reunited with Jones and Dolenz in the studio for the recording of the single "Christmas is My Time of the Year" b/w "White Christmas", which saw a limited release for fan club members that holiday season.
ground_truth: The Monkees