Question: Which rock band, Cocteau Twins or Tame Impala, is an Australian psychedelic rock band founded by Kevin Parker in 2007?

full_context: Document 1: 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.
Document 2: Innerspeaker: Innerspeaker is the debut studio album by the Australian rock band Tame Impala, released on 21 May 2010 by Modular Recordings. Most of its recording was undertaken by lead musician Kevin Parker. The album was recognized as one of The 100 Best Albums of the Decade So Far by "Pitchfork" in August 2014.
Document 3: The Associates (band): The Associates were a Scottish rock act, formed in Dundee in 1979 by singer Billy Mackenzie and guitarist Alan Rankine. The group first gained recognition after releasing an unauthorized cover of David Bowie's "Boys Keep Swinging" in 1979, which landed them a contract with Fiction Records. They followed with their debut album "The Affectionate Punch" in 1980 and the singles collection "Fourth Drawer Down" in 1981, both to critical praise.
Document 4: Will Heggie: Will Heggie is a Scottish musician. He co-founded the Cocteau Twins in 1980 with Robin Guthrie, and served as the bassist for them until 1983. Immediately after departing the Cocteau Twins, he helped form Lowlife and played bass with them from 1983–1997.
Document 5: Tame Impala discography: The discography of Tame Impala, a psychedelic rock project by the Australian musician Kevin Parker, consists of three studio albums, two live albums, four extended plays, eleven singles and several collaborations and compilation appearances.
Document 6: Four-Calendar Café: Four-Calendar Café is the seventh album by Scottish band Cocteau Twins. It was originally released on 18 October 1993 on Fontana. It distinguishes itself from the rest of the Twins' catalogue in two major areas: The sound is much more pop-oriented and less ambient than previous works, and vocalist Elizabeth Fraser's lyrics are more intelligible than usual.
Document 7: Currents (Tame Impala album): Currents is the third studio album by Australian rock band Tame Impala, released on 17 July 2015 by Modular Recordings and Universal Music Australia in Australia, Fiction Records in Europe and Interscope Records in the United States. Like the group's previous two albums, "Currents" was written, recorded, performed, and produced by primary member Kevin Parker. For the first time, Parker also mixed the music. It was also the first time that Parker recorded all instruments by himself; the album featured no other collaborators.
Document 8: Lonerism: Lonerism is the second studio album by the Australian rock band Tame Impala, released on 5 October 2012 by Modular Recordings. Like the band's debut studio album, "Innerspeaker" (2010), "Lonerism" was written, recorded, performed, and produced by Kevin Parker, with live member Jay Watson contributing on two tracks. Recorded mostly in Perth, Australia, and Paris, France, "Lonerism" builds on the psychedelic sound of its predecessor by featuring fewer guitars and more synthesisers and samples. Parker attempted to incorporate his love for pop music into his songwriting for the record through catchier melodies. Many tracks feature ambient sounds recorded by Parker with a dictaphone. The album's theme of isolation is reflected in the album cover, featuring an image of a fenced-off Jardin du Luxembourg in Paris.
Document 9: 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.
Document 10: Tame Impala (EP): Tame Impala is the second EP by Australian psychedelic rock band Tame Impala. It reached number 1 on the Australian Independent Record Labels (AIR) Chart and number 10 on the ARIA Physical Singles Chart. Three singles were released from the EP: "Desire Be, Desire Go", "Half Full Glass of Wine" and "Skeleton Tiger". All three received national radio airplay on the Triple J network.
Document 11: 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).
Document 12: 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.
Document 13: Kevin Parker (musician): Kevin Richard Parker (born 20 January 1986) is an Australian singer, songwriter, multi-instrumentalist and record producer, best known for being the frontman and live guitarist of the Australian psychedelic rock band Tame Impala, for which he writes, records, and produces the music. At the ARIA Music Awards of 2015 he won two awards, Engineer of the Year and Producer of the Year, for his work on Tame Impala's "Currents" (2015).
Document 14: The Moon and the Melodies: The Moon and the Melodies was an album resulting from the collaboration of the Scottish group Cocteau Twins and the American composer Harold Budd. It was released by 4AD in November 1986. The name "Cocteau Twins" did not appear on the release, which instead credited the band's three members (Elizabeth Fraser, Robin Guthrie and Simon Raymonde) and Budd individually. The album's heavily treated guitar sounds and euphoric vocalising could be heard in the group's other work from the same period, such as the EP "Echoes in a Shallow Bay" and the album "Victorialand". Budd's stylistic piano tonalities and phrasing on this project were echoed in his solo album "Lovely Thunder", released in the same year. A version of the track "Memory Gongs" was released on "Lovely Thunder" as "Flowered Knife Shadows" and was dedicated to Raymonde.
Document 15: Tame Impala: Tame Impala ( ) is an Australian psychedelic rock band founded by Kevin Parker in 2007. The group began as a home recording project for Parker, who writes, records, performs, and produces the music. As a touring act, the project consists of Parker (guitar, vocals), Jay Watson (synthesiser, vocals, guitar), Dominic Simper (guitar, synthesiser), Cam Avery (bass guitar, vocals), and Julien Barbagallo (drums, vocals). Previously signed to Modular Recordings, Tame Impala is signed to Interscope Records in the US, and Fiction Records in the UK.
ground_truth: Tame Impala