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

Context paragraphs:
The Bronx (band): The Bronx is an American hardcore punk band from Los Angeles formed in 2002.  The band's current lineup consists of vocalist Matt Caughthran, guitarists Joby J. Ford and Ken Horne, bass guitarist Brad Magers, and drummer David Hidalgo, Jr.  They have released five eponymous rock albums, and three additional albums of mariachi music under the alter ego Mariachi El Bronx.

Sex Stains: Sex Stains is an American punk rock band from Los Angeles formed in 2014 by Allison Wolfe, the former member of Bratmobile, alongside David Orlando, Sharif Dumani, Francisco "Pachy" Garcia, and Mecca Vazie Andrews.  In 2016, the band had released their debut album, eponymously titled "Sex Stains".

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.

Metro (Los Angeles): The Los Angeles County Metropolitan Transportation Authority (branded as Metro; formerly branded as MTA or LACMTA) is the public transportation operating agency for the County of Los Angeles formed in 1993 out of a merger of the Southern California Rapid Transit District and the Los Angeles County Transportation Commission.  It is chartered under state law as a regional transportation planning agency (RTPA).

List of Los Angeles Rams seasons: This article is a list of seasons completed by the Los Angeles Rams American football franchise (known as the Cleveland Rams from 1936 to 1945 and the St. Louis Rams from 1995 to 2015) in organized play.  The list documents the season-by-season records of the Los Angeles Rams franchise from 1936 to present, including conference standings, division standings, postseason records, league awards for individual players or head coaches, and team awards for individual players.  The Rams franchise was founded in Cleveland in 1936 when the team was playing in the newly formed American Football League (AFL).  The franchise joined the National Football League (NFL) the following year.  In 1943 operations were suspended due a depleted player roster due to World War II, and play resumed the following year.  The Rams were the only team to suspend completely in 1943.  The franchise has changed home cities thrice, moving to Los Angeles in 1946, moving to St. Louis in 1995, and returning to Los Angeles in 2016.

Aalon: Aalon was an American soul group from Los Angeles formed by lead singer and guitarist Aalon Butler.

Blood on the Saddle: Blood on the Saddle is a cowpunk band from Los Angeles formed in 1983.  They released three albums before splitting up in 1987, with the band's only constant member Greg Davis forming a new line-up in the 1990s, releasing 2 more albums up to the present.

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.

Smells Like Children: Smells Like Children is an EP by American rock band Marilyn Manson.  It was released on October 24, 1995 in the US through Nothing and Interscope Records.  It was produced by Trent Reznor of Nine Inch Nails.  The release represents an era of the band full of drugs, abuses, tours, sound experiments, and references the Child Catcher, a villain from the 1968 musical film "Chitty Chitty Bang Bang".

Inc. No World: Inc.  No World (stylized as inc. no world; formerly inc. and Teen Inc.) is an American music duo originally from Los Angeles formed by brothers Andrew and Daniel Aged.  Their first full length album, "No World", was released on February 19, 2013.

Supporting paragraphs: Head (film) The Monkees
Answer: The Monkees