Question: Are Buster Bloodvessel and Jonathan Davis both frontmen for their respective bands?

full_context: Document 1: Stuart Sutcliffe: Stuart Fergusson Victor Sutcliffe (23 June 1940 – 10 April 1962) was a British painter and musician best known as the original bass guitarist for the Beatles. Sutcliffe left the band to pursue his career as a painter, having previously attended the Liverpool College of Art. Sutcliffe and John Lennon are credited with inventing the name, "Beetles", as they both liked Buddy Holly's band, the Crickets. The band used this name for a while until Lennon decided to change the name to "the Beatles", from the word "beat". As a member of the group when it was a five-piece band, Sutcliffe is one of several people sometimes referred to as the "Fifth Beatle."
Document 2: List of songs recorded by Korn: Korn is an American alternative metal band from Bakersfield, California. Formed in 1993, the band originally featured vocalist Jonathan Davis, guitarists James "Munky" Shaffer and Brian "Head" Welch, bassist Reginald "Fieldy" Arvizu, and drummer David Silveria. The current lineup of the group includes drummer Ray Luzier, who replaced Silveria in 2009. The band released its self-titled debut album "Korn" in 1994, which was produced by Ross Robinson and featured equal songwriting credits for the whole band. "Life Is Peachy", released in 1996, included two cover versions – of Ice Cube's "Wicked" and War's "Lowrider", while the band's third album "Follow the Leader" featured collaborations with Limp Bizkit's Fred Durst ("All in the Family") and rappers Ice Cube ("Children of the Korn") and Slimkid3 ("Cameltosis").
Document 3: Jonathan Davis: Jonathan Howsmon Davis (born January 18, 1971), also known as JD and JDevil (or J Devil), is an American musician best known as the leading vocalist and frontman of the nu metal band Korn.
Document 4: Magical Mystery Tour (film): Magical Mystery Tour is a 52-minute-long British surreal comedy television film starring the Beatles (John Lennon, Paul McCartney, George Harrison and Ringo Starr) which originally aired on BBC1 on Boxing Day, 26 December 1967. Upon its initial showing, the film was poorly received by critics and audiences. The film received an American theatrical release in 1974 by New Line Cinema, and in select theatres worldwide in 2012 by Apple Films.
Document 5: Mike Davis (guitarist): Mike Davis (born ca. 1970) is an American metal guitarist. He is best known for his work in the progressive death metal band Nocturnus. He joined the band around 1988, and eventually became the bands' standout lead guitarist. He joined the band when he was just 18 years old and is widely regarded as an underrated guitarist. After the second breakup of Nocturnus in 2003 he formed the band Tiwanaku with Emo Mowery and Richard Christy, but quit early on 
Document 6: Bad Manners: Bad Manners are an English 2 Tone and ska band led by frontman Buster Bloodvessel. Early appearances included "Top of The Pops" and the live film documentary, "Dance Craze".
Document 7: Jonathan Davis and the SFA: Jonathan Davis and the SFA (Simply Fucking Amazings) is the solo band of Korn frontman Jonathan Davis.
Document 8: Devin Townsend: Devin Garrett Townsend (born May 5, 1972) is a Canadian musician, songwriter and record producer. He founded extreme metal band Strapping Young Lad and was its primary songwriter, vocalist, and guitarist in from 1994 to 2007, and has an extensive career as a solo artist.
Document 9: Howard Jones (American musician): Howard Jones (born July 20, 1970) is an American metalcore vocalist, best known as vocalist of the bands Killswitch Engage and Blood Has Been Shed, and as the current vocalist of Light the Torch, formerly known as Devil You Know.
Document 10: Buster Bloodvessel: Douglas Trendle (born 6 September 1958), better known as Buster Bloodvessel, is an English singer and the frontman of the ska revival band Bad Manners. His stage name was taken from the bus conductor played by Ivor Cutler in the Beatles' 1967 film "Magical Mystery Tour".
Document 11: Stuart Sutcliffe: Stuart Fergusson Victor Sutcliffe (23 June 1940 – 10 April 1962) was a British painter and musician best known as the original bass guitarist for the Beatles. Sutcliffe left the band to pursue his career as a painter, having previously attended the Liverpool College of Art. Sutcliffe and John Lennon are credited with inventing the name, "Beetles", as they both liked Buddy Holly's band, the Crickets. The band used this name for a while until Lennon decided to change the name to "the Beatles", from the word "beat". As a member of the group when it was a five-piece band, Sutcliffe is one of several people sometimes referred to as the "Fifth Beatle."
Document 12: Lil Jon: Jonathan Smith (born January 17, 1971), better known by his stage name Lil Jon, is an American rapper, record producer, and DJ. He was the frontman of the group Lil Jon & The East Side Boyz, which he formed in 1997, and they released several albums until 2004.
Document 13: Lip Up Fatty: "Lip Up Fatty" is a single released by British 2 Tone and ska band Bad Manners in June 1980, which reached No. 15 in the UK Singles Chart. It is one of a number of songs by Bad Manners about 'being fat', (a reference to the round figure of frontman, Buster Bloodvessel). According to Bloodvessel "Lip Up Fatty" was an expression used at his school "to tell people to shut up". Its signature melodic lines were a simple but careful blend of brass instruments and lead harmonica theme, played by Alan Sayag (Winston Bazoomies).
Document 14: Derek Royle: Derek Royle (7 September 1928 – 23 January 1990) was a British actor born in London, England. His face was probably better known than his name to British viewers, but he acted in films and TV from the mid-1960s until his death. He had a supporting role in the Beatles' film "Magical Mystery Tour" in 1967, as well as a minor one with Cilla Black in the film "Work Is a Four-Letter Word" a year later. Most of his film appearances were in comedy films such as "Don't Just Lie There, Say Something!" (1973), "Tiffany Jones" (1973) and "Confessions of a Sex Maniac" (1974).
Document 15: Faget (song): "Faget" is a song by the American nu metal band Korn. It is the sixth track from the band's self-titled debut studio album. The song is about how Korn's lead vocalist Jonathan Davis was bullied in high school for being into arts, wearing eyeliner, being into new wave music (for example, Duran Duran), and wearing frilly shirts. According to Jonathan Davis, he was constantly called names such as "faggot". Also, there was a rumor that Davis was gay. Jonathan Davis said he did not know if he was gay or not. Therefore, Davis tried to get in a relationship with another boy. However, Jonathan Davis disliked the experience, realizing he is not gay, even if people thought he was.
ground_truth: yes