Question: Are Shifty Shellshock and Alissa White-Gluz both death metal vocalists?

full_context: Document 1: Blameshift: Blameshift is a four-piece rock band from Long Island, New York that started in 2005. The band consists of Jenny Mann, Tim Barbour, Mike Sarkissian and Dan Scofield. The band is recognized for their work ethic, extensive touring history and high energy live show. In 2006 they recorded a self released album, “Drop Down”. The release was followed by over 150 tour dates including three dates on the Warped Tour. In 2007 Blameshift recorded their second album. “The Test” with Michael Birnbaum and Chris Bittner. The album was nationally released through Smart Punk, F.Y.E, Hot Topic, and iTunes. Alternative Press named Blameshift as “Unsigned Band Of The Month” in August 2008. Blameshift won a contest through Taco Bell called “Feed The Beat” in 2008. Michael Birnbaum and Chris Bittner also produced the single, The Sirens Are Set in 2008. Blameshift toured through all of 2008 in the U.S. and Canada with And Then There Was You, and The Material on the Everlasting Sound Tour. At the start of 2009 producer Mike Watts demoed the bands’ Self Titled EP. With touring in between with Sky Tells All and The Material, the release of the EP was put on hold until February 2010. In May 2010 the band raised $5500 through Kickstarter to record with producer / engineer Erik Ron in Hollywood, California. In June 2010 the band signed with Restless Management out of Venice Beach, California.
Document 2: Anette Olzon: Anette Ingegerd Olsson (born 21 June 1971), known by the stage name Anette Olzon, is a Swedish singer, best known as the lead vocalist of Finnish symphonic metal band Nightwish from 2007 to 2012. She is also the former vocalist of Swedish classic rock band Alyson Avenue.
Document 3: Toby Sheldon: Tobias "Toby" Sheldon (born Tobias Strebel; 1980 – August 21, 2015) was a German songwriter who became a television reality star noted for having paid extraordinary amounts for plastic surgery (he himself estimated the total cost at over $100,000) in order to resemble singer Justin Bieber. He appeared on the television shows "Botched" on the E! network and "My Strange Addiction" on TLC. Some experts argued that Sheldon's obsession was a case of body dysmorphia. This topic was discussed in depth during his appearance alongside Justin Jedlica ("The Human Ken Doll") on the talk show "Bethenny".
Document 4: Brian Setzer: Brian Robert Setzer (born April 10, 1959) is an American guitarist, singer, and songwriter. He found widespread success in the early 1980s with the 1950s-style rockabilly group Stray Cats, and revitalized his career in the late 1990s with his swing revival band, the Brian Setzer Orchestra.
Document 5: Arch Enemy discography: The following is a comprehensive discography of Arch Enemy, a Swedish melodic death metal band that formed in 1996. Its members were in bands such as Carcass, Armageddon, Carnage, Mercyful Fate, Spiritual Beggars, and Eucharist. It was founded by Carcass guitarist Michael Amott along with Johan Liiva, who were both originally from the influential death metal band Carnage. The band has released ten studio albums, three live albums, three video albums and three EPs. The band was originally fronted by Johan Liiva, who was replaced by German Angela Gossow as lead vocalist in 2000. Gossow left the band in March 2014 and was replaced by Canadian Alissa White-Gluz, while remaining as the group's manager.
Document 6: Arch Enemy: Arch Enemy is a Swedish melodic death metal band, originally a supergroup, from Halmstad, formed in 1996. Its members were in bands such as Carcass, Armageddon, Carnage, Mercyful Fate, Spiritual Beggars, Nevermore, and Eucharist. It was founded by Carcass guitarist Michael Amott along with Johan Liiva, who were both originally from the influential death metal band Carnage. The band has released ten studio albums, three live albums, three video albums and four EPs. The band was originally fronted by Johan Liiva, who was replaced by German Angela Gossow as lead vocalist in 2000. Gossow left the band in March 2014 and was replaced by Canadian Alissa White-Gluz, while remaining as the group's manager.
Document 7: Alissa White-Gluz: Alissa White-Gluz ( ; born July 31, 1985) is a Canadian vocalist, best known as lead vocalist of the Swedish melodic death metal band Arch Enemy, and former lead vocalist and founding member of the Canadian metal band The Agonist.
Document 8: War Eternal: War Eternal is the ninth studio album by Swedish melodic death metal band Arch Enemy, which was released on June 9, 2014 by Century Media. It is the first Arch Enemy album in 13 years since Wages of Sin to feature a new line-up; Alissa White-Gluz took over on vocals after former long-time vocalist Angela Gossow stepped down from vocal duties to be the band's business manager. Additionally, ex-Arsis guitarist Nick Cordle replaced Christopher Amott in 2012. Cordle ultimately left the band just before their European tour and was replaced by former Nevermore Guitarist Jeff Loomis
Document 9: Shifty Shellshock: Seth Brooks Binzer (born August 23, 1974), better known by his stage name Shifty Shellshock, is an American music artist, best known for being a co-founder and front man of the rap rock band Crazy Town, and their hit song "Butterfly". He has also had a solo music career and appeared in the reality television series "Celebrity Rehab" 1 and 2 and "Sober House" 1 and 2.
Document 10: Angela Gossow: Angela Nathalie Gossow (born 5 November 1974) is a German vocalist, best known as the former lead vocalist for the Swedish melodic death metal band Arch Enemy. Her other previous bands include Asmodina and Mistress. She is considered to be one of the few successful female metal singers to use growling as her primary singing style.
Document 11: The Agonist: The Agonist is a Canadian metal band from Montreal, Quebec, formed in 2004. The current line up consists of guitarists Danny Marino and Pascal (Paco) Jobin, bassist Chris Kells, drummer Simon Mckay, and vocalist Vicky Psarakis, who joined in March 2014 following the departure of vocalist and founding member Alissa White-Gluz. Both Psarakis and White-Gluz use growled and clean vocals. Originally known as the Tempest, the band adopted their current moniker upon their signing to Century Media in 2007. To date, the Agonist has released five studio albums; the latest, "Five", was released in September 2016. Touring extensively since their first album, they have shared the stage with bands such as Arsonists Get All the Girls, Epica, the Faceless, Chelsea Grin, Kamelot and Visions of Atlantis.
Document 12: Happy Love Sick: Happy Love Sick is the debut solo album by Shifty Shellshock who is best known as frontman of rap rock band Crazy Town. The album includes the original singles "Slide Along Side" and "Turning Me On". The single "Starry Eyed Surprise", a collaboration between Paul Oakenfold and Shellshock that was originally released in 2002 on Oakenfold's album "Bunkka", also appears on this CD.
Document 13: Seth Kimbrough: Seth Kimbrough is a professional BMX rider, most notable for being the vocalist for Mortal Treason until the band's break-up in 2005. He also formed Misery Chastain, a year after Mortal Treason's break-up.
Document 14: Seth Bogart: Seth Bogart is the second overall solo studio album written, recorded and performed by Hunx and His Punx vocalist Seth Bogart. It is the first studio album to be released under his name, as his previous solo record "Hairdresser" was issued under his stage name Hunx. Bogart had enjoyed making music as his Hunx character, but had wanted for a long time to start recording material that showed more of his true self, "like a weird teenager’s version of an adult album" as he said in an interview. Therefore, he decide to take more than two years to make the album, unlike during his Hunx period where he would make a record in five days or less. "Seth Bogart" was produced and co-written by Cole MGN, and also features vocal performances from Chela, Kathleen Hanna, Tavi Gevinson, Jeremiah Nadya and Clementine Creevy.
Document 15: Epic Mazur: Epic Mazur (born Bret Hadley Mazur on August 31, 1970) is an American vocalist, rapper, and record producer. He is best known as a founder and frontman of the band Crazy Town, and its hit song "Butterfly".
ground_truth: no