Question: Trevor Horn and Annie Haslam are from which country?

Context articles: Mustard (album)
Trevor Horn
The Trevor Horn Band
Annie in Wonderland
Intergalactic Touring Band
Annie Haslam (album)
Made in Basing Street
Annie Haslam
Renaissance (band)
Nevada (UK band)

Mustard is the second solo album by Roy Wood, who wrote and produced every track and painted the cartoon-style cover.
 It was completed and released about the same time as he disbanded his group Wizzard.
 He played all the instruments, and contributed all vocals apart from guest appearances by Annie Haslam, Phil Everly, ex-Move and Wizzard bassist Rick Price, and co-engineer Dick Plant.
Trevor Charles Horn, CBE (born 15 July 1949) is an English producer, songwriter, musician and singer.
 His influence on 1980s popular music was such that he has been called "The Man Who Invented the Eighties".
The Trevor Horn Band are an English supergroup formed in 2006 as The Producers, consisting of record producers Trevor Horn (bass and vocals) and Steve Lipson (guitar), and musicians Lol Creme (guitar and vocals) and Ash Soan (drums).
 The band briefly adopted the name US before changing to Producers.
 Latterly, they have switched to the name The Trevor Horn Band.
Annie in Wonderland is the first solo album by Annie Haslam, vocalist with the 1970s band Renaissance.
 It was produced by the multi-talented Roy Wood, who also wrote some of the material, arranged all the songs, played nearly all of the instruments (including an uncredited lead vocal on "I Never Believed in Love"), and illustrated the cover.
 The album features a range of musical styles enabling Haslam to experiment with vocal styles outside the ethos of Renaissance.
 The range for which Haslam is well-known is still apparent, however, especially in the showcase number "Rockalise".
 The album peaked at No. 167 on the "Billboard" "pop albums" chart.
The Intergalactic Touring Band (IGTB) was not an actual music group but rather a science fiction pop music concept album released in 1977 by the now defunct Passport Records in America and Charisma Records in England.
 The ensemble album featured many star performers from progressive rock and other genres, including Meat Loaf, Ben E. King, Larry Fast (Synergy), Percy Jones, Annie Haslam, Rod Argent, Peppi Marchello (Good Rats), and many others.
 The songs are loosely held together by an epic theme of multi-generational space travel and human space colonization.
Annie Haslam is the third solo album by Renaissance vocalist Annie Haslam, released in 1989.
Made in Basing Street is the first album by the English supergroup Producers, now known as The Trevor Horn Band, released on June 25, 2012.
 As the album's name suggests, it was mainly recorded in the legendary SARM Studios (formerly known as 'Basing Street Studios') in Notting Hill, which is now owned by producer and Producers member Trevor Horn, and was used to record such famous albums as "Led Zeppelin IV" and Queen's "News of the World".
Annie Haslam (born 8 June 1947 in Bolton, Lancashire, England) is an English vocalist, songwriter, and painter.
 She is best known as the lead singer of progressive rock band Renaissance since 1971, and for her long and diverse solo singing career.
 She has a five-octave vocal range.
 From 2002, Haslam has developed a parallel career as a visual artist, producing paintings on canvas, painted musical instruments, and giclées.
Renaissance are an English progressive rock band, best known for their 1978 UK top 10 hit "Northern Lights" and progressive rock classics like "Carpet of the Sun", "Mother Russia", and "Ashes Are Burning".
 They developed a unique sound, combining a female lead vocal with a fusion of classical, folk, rock, and jazz influences.
 Characteristic elements of the Renaissance sound are Annie Haslam's wide vocal range, prominent piano accompaniment, orchestral arrangements, vocal harmonies, acoustic guitar, bass guitar, synthesiser, and versatile drum work.
 The band created a significant following in the northeast United States in the 70s, and that region remains their strongest fan base.
Nevada were a British folk/progressive rock band and a spin-off from Renaissance, featuring Annie Haslam on vocals and Mick Dunford on guitar.
 Their Christmas single, "In the Bleak Midwinter", reached the lower edges of the UK singles chart in 1983.