Question: Which "Britain's Got Talent" performer was featured in a musical co-written by Elaine C. Smith?

Context articles: Got Talent Portugal (season 5)
Got Talent Portugal (season 4)
India's Got Talent
Thailand's Got Talent (season 5)
Alan McHugh
Canada's Got Talent
Susan Boyle
Talento Argentino
Alex Magala
Česko Slovensko má talent

Got Talent Portugal (season 5) was the 5th season of the talent show Got Talent Portugal, Portuguese version of the hit got talent show Britain's Got Talent.
 Each judge can press the golden buzzer once in the auditions same as last year, such as the hosts.
 This year a new rule was made, the judges can give a unanimous golden buzzer that means the 3 judges can press the buzzer at the same time.
Season 4 of the got talent show got talent Portugal, Portuguese version of the hit got talent show Britain's got talent.
India's Got Talent (sometimes abbreviated as IGT) is an Indian reality television series on Colors television network, founded by Sakib Zakir Ahmed and part of the global British "Got Talent" franchise.
 It is a cooperative effort between Colors and Britain's FremantleMedia.
 The first episode of "India's Got Talent" premiered on 27 June 2009.
 "India's Got Talent" follows the global "Got Talent" format, in which contestants audition in front of three judges and a studio audience.
 Up until the semifinal and final rounds, the judges decide whether or not a contestant advances in the competition.
 During the semifinal and final rounds, viewers vote on which contestants will advance.
Thailand's Got Talent season 5 (also known as TGT) was the fifth season of the Thailand's Got Talent reality television series on the Channel 3 television network, and part of the global British "Got Talent" series.
 It is a talent show that features singers, dancers, sketch artists, comedians and other performers of all ages competing for the advertised top prize of 10,000,000 Baht (approximately $325,000).
 The show debuted in June 2015.
 Thailand is also the fifth country in Asia to license Got Talent series.
 The four judges Chalatit Tantiwut,Patcharasri Benjamad,Pornchita Na Songkla and Nitipong Hornak join hosts Ketsepsawat Palagawongse na Ayutthaya.
Alan McHugh is a Scottish actor, comedian and writer.
 He is best known for his roles in television shows such as "Taggart" (as Assistant Chief Constable Strathairn), "Take the High Road", "Limmy's Show", and "Rab C. Nesbitt".
 He co-wrote the jukebox stage musical I Dreamed a Dream about the rise of Scottish singer Susan Boyle alongside fellow comedian Elaine C. Smith.
Canada's Got Talent is a Canadian reality talent show series that debuted on the Citytv network on March 4, 2012, and part of the global "Got Talent" franchise.
 The logo used for "Canada's Got Talent" does not follow the logo from "America's Got Talent", but instead follows the logo from "Britain's Got Talent".
Susan Magdalane Boyle (born 1 April 1961) is a Scottish singer who came to international attention when she appeared as a contestant on the TV programme "Britain's Got Talent" on 11 April 2009, singing "I Dreamed a Dream" from "Les Misérables ".
Talento Argentino is a television show, led by Mariano Peluffo, which airs on the Telefé channel.
 It is based on the English-format "Got Talent" series, which takes place simultaneously in other countries, such as "Britain's Got Talent" in Great Britain, "America's Got Talent" in the United States or "Got Talent", the Spanish version.
Alexandr Magala (born 24 June 1989 in Orhei) is a Moldovan entertainer and sword swallower who won "Russia's Got Talent" in 2014.
 He was also a finalist on "Britain's Got Talent" and "Italia's Got Talent", a semi-finalist on "Ukraine's Got Talent", and a quarter-finalist on "America's Got Talent."
Česko Slovensko má talent ("Czechia Slovakia's Got Talent" or "Czecho Slovakia's Got Talent") is a Czech and Slovak televised talent show competition which started in August 2010 and originated from the "Got Talent" franchise.
 The show is a Thames production (formerly Talkback Thames) distributed by FremantleMedia and is produced in association with Syco TV.
 The show is broadcast on TV JOJ and Prima family.
 Anyone of any age with any sort of talent can audition for the show.
 Acts compete against each other to gain audience support while trying to become "the winner of "Czecho Slovakia's Got Talent"".