Question: Which musician was American, Chris Barnes or Elizabeth Fraser?

Context paragraphs:
Torture Killer: Torture Killer is a Finnish death metal band from Turku, Finland, formed in 2002.  The band consists of five members: guitarists Jari Laine and Tuomas Karppinen, bassist Kim Torniainen, drummer Tuomo Latvala and the current vocalist Pessi Haltsonen.  The band was originally a Six Feet Under cover band adopting their moniker from a Six Feet Under song, but soon began composing and performing original material in the same vein.  Chris Barnes, the original singer for Cannibal Corpse and current singer for Six Feet Under, officially joined Torture Killer as lead singer in November 2005 and was a part of the recording of the album "Swarm! ".  He left the band in January 2008.  Barnes was not involved with their live performances while a part of the band.

Head over Heels (Cocteau Twins album): Head over Heels is the second studio album by influential Scottish rock band Cocteau Twins.  The album was released in October 1983 by 4AD, and was their first album as a duo of Elizabeth Fraser and Robin Guthrie.  It featured the band's signature sound of "Guthrie’s lush guitars under Fraser’s mostly wordless vocals" and is considered an archetype of early ethereal wave music.

Chris Barnes (musician): Chris Barnes (born December 29, 1967) is an American musician mainly noted for his deep-throat vocals and explicitly violent lyrics.  He was the founding vocalist and lyricist of the death metal band Cannibal Corpse (from 1988 to 1995), later working as part of Six Feet Under, and has appeared on the Finnish death metal band Torture Killer's second album "Swarm! ".  Barnes designed the original Cannibal Corpse logo, the Six Feet Under logo and also created the artwork for "Warpath", released in 1997.

OVO: OVO is the soundtrack to the Millennium Dome Show in London that was composed by the English rock musician Peter Gabriel.  It was his eleventh album overall.  It was released on 12 June 2000 and features guest vocals by Neneh Cherry, Rasco, Richie Havens, Elizabeth Fraser, and Paul Buchanan (of The Blue Nile).  Two versions of the album were released, a standard version which was sold in stores and a deluxe limited edition version, which was sold only at the Millennium Dome and petergabriel.com.  The limited version, which was discontinued after 2000, includes a comic book telling the OVO story and a bonus disc with the track, "The Story of OVO".

Six Feet Under (band): Six Feet Under is an American death metal band from Tampa, Florida, formed in 1993.  The band consists of five members: founding vocalist Chris Barnes, guitarists Ray Suhy and Jack Owen, bassist Jeff Hughell and drummer Marco Pitruzzella.  It was originally a side project formed by Barnes with guitarist Allen West of Obituary, but became a full-time commitment after Barnes was dismissed from Cannibal Corpse in 1995.  They have released twelve albums, and are listed by Nielsen Soundscan as the fourth best-selling death metal act in the U.S., with album sales over 370,000 (sales numbers are taken from 2003).

Elizabeth Fraser: Elizabeth Davidson Fraser (born 29 August 1963), sometimes known as Liz Fraser, is a British singer, songwriter and musician from Grangemouth, Scotland, best known as the vocalist for the band Cocteau Twins.  She has a soprano vocal range.  She was described by critic Jason Ankeny as "an utterly unique performer whose swooping, operatic vocals relied less on any recognizable language than on the subjective sounds and textures of verbalized emotions".  Her distinctive singing has received much critical praise; she was once described as "the voice of God."  Her lyrics range from straightforward English to semi-comprehensible sentences (idioglossia) and abstract mouth music.  For some recordings, she has said she used foreign words without knowing what they meant – the words acquired meaning for her only as she sang them.

Vile (album): Vile is the fifth studio album by American death metal band Cannibal Corpse.  It was released in 1996 through Metal Blade Records.  It was originally titled "Created to Kill" (which is featured in the Cannibal Corpse Box set) and was recorded with founding vocalist Chris Barnes.  Before the album was released, Barnes was dismissed from the band, which then brought in Monstrosity vocalist George "Corpsegrinder" Fisher to finish the album's vocal work.  Fisher re-recorded all of the vocal tracks and the band released the album under the new title "Vile".  "Vile" also marks the last album featuring guitarist Rob Barrett until "Kill", and features a brand new band logo, because the previous logo was owned and trademarked by the departing Chris Barnes.

Les Retrouvailles: Les Retrouvailles is the fifth studio album by French musician Yann Tiersen.  Released in 2005 through Ici, d'ailleurs... record label, it features a number of high-profile guest vocalists, both French and Anglophone alike: Christophe Miossec, Dominique A, Elizabeth Fraser (of the Cocteau Twins), Jane Birkin, and Stuart Staples (of the Tindersticks).  As is customary with his albums, Tiersen showcases his multi-instrumental skills, which on the album encompasses the accordion, piano, mandolin, and harpsichord, among others.

It'll End in Tears: It'll End in Tears is the first album released by 4AD collective This Mortal Coil, an umbrella title for a loose grouping of guest musicians and vocalists brought together by label boss Ivo Watts-Russell.  The album was released on 1 October 1984, and reached #38 on the UK Albums Chart.  It features many of the artists on the 4AD roster at the time, including Cocteau Twins, Colourbox, and Dead Can Dance; as well as key post-punk figure Howard Devoto, who sang "Holocaust", one of two covers of songs from the "Third/Sister Lovers" album by Big Star.  The other Alex Chilton-penned track, album opener "Kangaroo", was released as a single to promote the album.  Two key songs were performed by Elizabeth Fraser of Cocteau Twins, including Tim Buckley's "Song to the Siren", which reached #66 on the UK Charts when released as This Mortal Coil's debut single a year before the album.  The song remained on the UK Indie Chart for almost two years.  Fraser also performed on "Another Day" by Roy Harper.  4AD would go on to release two further albums under the name of This Mortal Coil: "Filigree & Shadow" (1986) and "Blood" (1991).

Cocteau Twins: Cocteau Twins were a Scottish rock band active from 1979 to 1997.  The original members were singer Elizabeth Fraser, guitarist Robin Guthrie, and bassist Will Heggie, who was replaced by multi-instrumentalist Simon Raymonde in 1983.  The group has earned much critical praise for its distinctive ethereal sound and the distinctive soprano vocals of Fraser, which often abandoned recognizable language altogether.  They were associated with the UK label 4AD for much of their career.

Supporting paragraphs: Chris Barnes (musician) Elizabeth Fraser
Answer: Chris Barnes