Question: What is the nationality of the producer of Holiday Showdown?

Context paragraphs:
Lee's Holiday Showdown: Lee's Holiday Showdown (2007) is a comic children's novel by Keith Charters.  It is the third in the Lee series, following "Lee Goes for Gold".

Vlad Holiday: Vlad Holiday (born May 24, 1989) is a Romanian-born American singer, songwriter, producer and multi-instrumentalist.  He is best known as the lead singer and founder of the New York City-based indie rock band Born Cages.  In addition to his work with Born Cages, Holiday is also a music producer, who's worked on albums like Donald Cumming's Out Calls Only (Razor & Tie), and Public Access TV's Never Enough (Cinematic Music Group).  On July 28th, 2017, Nylon (magazine) premiered Holiday's solo project debut "Quit Playing Cool".  The song was also featured on Spotify's New Indie Mix playlist, as well as All Genres Hot Tracks on iTunes and Apple Music.

Simon Rockell: Simon Rockell is a British television producer.  He has most recently produced "Wakey Wakey Campers" in 2005.  He also produced "Holiday Showdown".  He came up with the idea for the popular sitcom, Teachers.

2013 Kansas State Wildcats football team: The 2013 Kansas State Wildcats football team represented Kansas State University in the 2013 NCAA Division I FBS football season.  The Wildcats play their home games at Bill Snyder Family Football Stadium, in Manhattan, Kansas as they have since 1968.  2013 is the 118th season in school history.  The Wildcats are led by head coach Bill Snyder in his 22nd overall and fifth straight season since taking over in his second tenure in 2009.  K-State is a member of the Big 12 Conference.  Conference play began with a loss to the Texas Longhorns, which ended the Wildcats 5-game winning streak against the Longhorns.  Their last lost against Texas was in 2003.  The regular season ended with a win over in-state rival Kansas in the Sunflower Showdown.  After completing the regular season with a 7–5 record, the Kansas State Wildcats returned for a bowl game for the fourth straight year, were selected to play in the 2013 Buffalo Wild Wings Bowl and played the Michigan Wolverines.  The season ended with the Wildcats defeating the Wolverines, 31–14, to break a five-game bowl losing streak winning their first bowl game since the 2002 Holiday Bowl and finishing the season 8–5.

Music festival: A music festival is a festival oriented towards music that is sometimes presented with a theme such as musical genre, nationality, or locality of musicians, or holiday.  They are commonly held outdoors, and are often inclusive of other attractions such as food and merchandise vending, performance art, and social activities.  Many festivals are annual, or repeat at some other interval.  Some, including many rock festivals, are held only once.  Some festivals are organized as for-profit concerts and others are benefits for a specific cause.  Another type of music festival is the educative type, organized annually in local communities, regionally, or nationally, for the benefit of amateur musicians of all ages and grades of achievement.

Holiday Showdown: Holiday Showdown was a BAFTA-nominated and Royal Television Society Award-winning reality television programme, produced by Chris Kelly for the United Kingdom independent TV production company RDF Media.  It was first broadcast in 2003 on ITV in the United Kingdom.

Malice in Wonderland (Nazareth album): Malice in Wonderland is the eleventh studio album by the Scottish hard rock band Nazareth, released in 1980.  After the heavy lurch of the previous album, the band chose to follow a more commercial path, striving for producing of hit singles "Holiday" and "Heart's Grown Cold".  The 2010 edition brought a range of bonus tracks, all extracted from a concert at the legendary Hammersmith Odeon, which were broadcast by the BBC for the In Concert program in 1980.  It is a very varied album, with melodic and heavy songs like "Talkin' to One of the Boys" and "Showdown at the Border" and the flirtation with a reggae feeling in "Big Boy".

Iron Chef USA: Iron Chef USA is the first American adaptation of the Japanese television series "Iron Chef".  "Iron Chef USA" appeared on the UPN television network in 2001.  Only two episodes were aired (both are considered pilots): "Las Vegas Showdown" and "Holiday Battle"; neither received critical acclaim.  It would not be until 2004 when another adaptation of "Iron Chef", titled "Iron Chef America", would air.

Holiday Mountain: Holiday Mountain is an electronic music duo founded in 2011 by Mexican-American songwriter and keyboardist Laura Patiño with drummer and producer Zander Kagle.  The two met in Boston while attending Berklee College of Music in 2011.  The trio is inspired by music groups like Santigold, Major Lazer, and Die Antwoord.  The duo combines edm, hip hop, reggae, dubstep, and Cumbia to create a heavy futuristic dance genre.  Patiño’s vocal stylings & fashion sense is influenced by Billie Holiday, M.I.A., Amy Winehouse, and Gwen Stefani.  The name Holiday Mountain is a combination of Billie Holiday and the Rocky Mountains, two large inspirations for Laura Patiño.

Chris Kelly (TV presenter): Christopher Paul Kelly (born 24 April 1940) is an English TV presenter, producer and writer.

Supporting paragraphs: Holiday Showdown Chris Kelly (TV presenter)
Answer: English