Question: Blaze Bayley and Tracey Thorn, are of which mutual nationality?
Context: Alive in Poland is the fifth release and second live album by English heavy metal band Blaze Bayley, released in 2007.  It features mostly the band's original material, though they also play some Iron Maiden and Wolfsbane covers, as lead singer Blaze Bayley used to be in both bands. Tracey Anne Thorn (born 26 September 1962) is an English singer, songwriter and writer.  She is best known as being one half of the duo Everything but the Girl. As Live As It Gets is the third release and first live album by English heavy metal band Blaze Bayley, then known as Blaze, released in 2003.  It features mostly the band's original material, though they also play some Iron Maiden and Wolfsbane covers, as lead singer Blaze Bayley used to be in both bands.  The band also covers the Led Zeppelin track "Dazed and Confused", which appeared earlier as a studio track on the Led Zeppelin tribute album ""The Music Remains The Same"". "It's All True" is the first single from singer Tracey Thorn's solo album, "Out of the Woods", released in February 2007.  The Martin Buttrich Vocal Mix of the single was premiered on 24 November 2006, on Everything But the Girl's, Ben Watt's online radio show, Buzzin' Fly.  The Album Mix was subsequently released on Tracey Thorn's official Myspace page in early December 2006.  "It's All True" is one of seven songs produced by Ewan Pearson.  The music was also co-written and produced by Klas-henrik "Sasse" Lindblad and Darshan Jesrani of Metro Area.  One of the digital releases EP has a cover version of the Pet Shop Boys song, "Kings Cross", on it. The King of Metal is the sixth studio album by English heavy metal vocalist Blaze Bayley, released in 2012.  This is the first album that Blaze recorded where he considers himself a "Solo Artist", having parted ways with the Blaze Bayley band that recorded The Man Who Would Not Die and Promise and Terror. Promise and Terror is the fifth studio album by English heavy metal band Blaze Bayley, released in 2010.  It is the second studio album released by the band since they changed their name from Blaze.  It is also the first Blaze Bayley album without a title track. The Man Who Would Not Die is the fourth studio album by English heavy metal band Blaze Bayley, released in 2008.  It is the first studio album released by the band since they changed their name from "Blaze" and the first with the completely new band line-up other than Blaze Bayley himself.  The track "Robot" was released as the band's first single, and later a video was made for it. Love and Its Opposite is the third solo album by former Everything but the Girl singer Tracey Thorn, released on 17 May 2010.  The album was released on Thorn's husband Ben Watt's label Strange Feeling in the UK, and on Merge Records in North America.  It was produced by Ewan Pearson, who also produced tracks on Thorn's previous album "Out of the Woods".  The album peaked at number 51 in the UK Albums Chart. Marine Girls were a post-punk group from Hatfield, Hertfordshire.  The group was formed in 1980, by two sixth form school friends: Tracey Thorn and Gina Hartman.  Originally, Thorn just played guitar and Hartman was the lead vocalist and percussionist.  Thorn overcame her shyness and started singing too by the time they started making records.  They were later joined by Jane Fox on bass and her younger sister, Alice, on joint vocals and percussion. Blaze Bayley (born Bayley Alexander Cooke, 29 May 1963) is an English singer, musician, songwriter, and lyricist.  He was the lead singer of Wolfsbane from 1984 to 1994, and currently from 2010 following reunions in 2007 and 2009.  Bayley was also the lead singer for Iron Maiden from 1994 to 1999.  Since then, he has embarked on a solo career.
Answer: English