Question: Are Emily Whitehurst and Dave Cousins both American singers and songwriters?

full_context: Document 1: Laura Jane Grace: Laura Jane Grace (born Thomas James Gabel, November 8, 1980) is an American musician best known as the founder, lead singer, songwriter and guitarist of the punk rock band Against Me!. Starting as a solo act in 1997, Against Me! expanded into a quartet and released seven studio albums, experiencing breakthrough success with 2007's "New Wave" and 2010's "White Crosses". Grace also released a solo EP, "Heart Burns", in 2008. In 2011, she founded the Total Treble recording studio and an accompanying record label, Total Treble Music.
Document 2: Justin Hayward: Justin David Hayward (born 14 October 1946) is an English musician, best known as songwriter, lead singer, and guitarist in the rock band the Moody Blues.
Document 3: Tony Hooper: Tony Hooper (born 14 September 1943) is an English singer-songwriter and musician. He is best known as a founder-member of Strawbs together with Dave Cousins. He left Strawbs in 1972 after their album "Grave New World", when it became obvious that the band was moving further away from its folk roots towards rock and progressive rock. He rejoined for a 10-year stint in 1983. Hooper has been the guitarist in the Ceilidh & Barn-Dance Band Pitchfork since 1984, and is also a member of Misalliance.
Document 4: Chas Hodges: Charles Nicholas "Chas" Hodges (born 28 December 1943) is an English musician and singer, probably best known for being one half, and lead vocalist, of the English musical duo Chas & Dave.
Document 5: The Action Design: The Action Design is an American rock band formed in Petaluma, California, after the breakup of the former punk rock band Tsunami Bomb. Emily Whitehurst and Matt McKenzie came together to produce a new band, self-described as "a refreshing mix of the band's punk rock roots infused with hard hitting dance rhythms and catchy basslines wrought with think memorable vocal hooks". In January 2011, on their official Facebook page, the band announced its members are currently focusing on other musical projects rather than The Action Design.
Document 6: White Noise (PVRIS album): White Noise is the debut studio album by American rock band PVRIS. PVRIS formed as a five-piece metalcore band in Lowell, Massachusetts in 2012. Following the band becoming a four-piece of vocalist/guitarist Lyndsey Gunnulfsen, guitarist Alex Babinski, bassist Brian MacDonald and drummer Brad Griffin, the group's sound changed. Bringing pop and electronic elements into their music, the band released a self-titled EP. After winning a contest, the band played a week on Warped Tour; following this, Griffin left the band. The group signed with Rise and Velocity in June 2014. "White Noise" was recorded with producer Blake Harnage. Harnage would help co-write several songs on the album with Gunnulfsen; Sierra Kusterbeck helped co-write a few songs with Harnage and Gunnulfsen.
Document 7: Dave Gahan: David "Dave" Gahan ( ; born David Callcott; 9 May 1962) is an English singer-songwriter, best known as the baritone lead singer of the electronic band Depeche Mode since their debut in 1980. He is also an accomplished solo artist, releasing albums in 2003 ("Paper Monsters") and 2007 ("Hourglass").
Document 8: Simon Cousins: Simon Cousins (born Simon Frederick Cousins, 17 January 1965, Bath, Somerset) is an English singer-songwriter and musician, who was a member of Liverpool indie country rock band The Onset and folk rockers Ophiuchus. He studied music at the Liverpool Music College and has a degree in philosophy from Liverpool University. His solo work is in an acoustic, folk / country genre, described by Tim Peacock of Whisperin and Hollerin' online magazine as "showcasing a fluid finger-picking style and a gentle, unobtrusive voice which nonetheless carries a determined presence." Seph Ong of Glasswerk National stated that Cousins' songs were "derived from real life experience" and that as a performer he "presents a series of tales that gradually unravel to build a story of the mystery of life." Cousins performed at the Glastonbury Festival, Pilton, UK in 2010, 2011 and 2016.
Document 9: Emily Whitehurst: Emily Grace Whitehurst (born July 23, 1979), also known as Agent M, is an American singer, songwriter, composer, musician, and record producer. In 1998, she began her music career by fronting the punk rock band Tsunami Bomb. After Tsunami Bomb disbanded in 2005, she co-founded and fronted the Action Design; a rock group. Since 2012, Whitehurst has been working on her synth-driven, indie pop project, Survival Guide.
Document 10: Dave Peverett: David Jack Peverett (16 April 1943 – 7 February 2000), also known as Lonesome Dave, was an English singer and musician, best known as the original lead vocalist and rhythm guitarist of the rock band Foghat, which he founded following his tenure in Savoy Brown.
Document 11: Emily Haines: Emily Haines (born January 25, 1974) is a Canadian singer and songwriter. She is best known as the lead singer, keyboardist and songwriter of the rock band Metric and a member of Broken Social Scene. As a solo artist, she has performed under her own name and under the moniker Emily Haines & The Soft Skeleton. Haines possesses a soprano vocal range.
Document 12: Mindy White: Mindy White (born June 19, 1989) is an American singer-songwriter and musician from Nashville, TN. She is a former member of Arizona-based indie rock band Lydia and current lead vocalist of indie rock band States. Mindy is also founder and editor of her lifestyle site Hello Real Life.
Document 13: Dave Cousins: Dave Cousins (born David Joseph Hindson, 7 January 1945, Hounslow, Middlesex, England) is an English singer and songwriter, who has been the leader, singer and most active songwriter of Strawbs since 1967.
Document 14: Tsunami Bomb: Tsunami Bomb are a punk rock band from Petaluma, California that was active between 1998 and 2005 and reunited at the end of 2015. They have released two studio albums and four EPs, three of which were collected and reissued as a full-length album. They were founded by Dominic Davi who left in 2003 and underwent numerous lineup changes, containing almost no original members by the time of their disbandment in 2005. Their lineup upon disbanding consisted of Emily Whitehurst, Jay Northington, Matt Mckenzie, and Gabriel Lindeman. The band gave a reunion performance on January 17, 2009 in Petaluma.
Document 15: Dave Peacock (musician): David Victor "Dave" Peacock (born 24 May 1945) is an English musician and bass guitarist. He was raised in Ponders End and the Freezywater areas of Enfield. Peacock is best known as having been one half of the English musical duo, Chas & Dave from 1975.
ground_truth: no