Question: Gorka Márquez appeared on the live dance show that has been in production since what year?
Context: Erik "Tobias" Karlsson, (born 15 May 1977) is a Swedish competitive dancer and choreographer.  Karlsson has been dancing since the age of eight, and has been a professional dancer and choreographer mainly in ballroom dancing since 1999.  He has participated in several seasons of the TV4 celebrity dance show "Let's Dance", he won the third season of the show dancing with Tina Nordström.  He has also danced along with Arja Saijonmaa, Anna Sahlin, Elisabet Höglund, Agneta Sjödin Tina Thörner, Camilla Henemark and latest in 2013 along with Anette Norberg.  He has all in all participated in fourtheen seasons of the celebrity dance show both in Sweden and the Danish version "Vild med dans" where he has danced with Sofie Stougaard, Zindy Laursen och Tina Lund.  He has also danced in the Norwegian version Skal vi danse along with celebrities Triana Iglesiasa and Cecilie Skog. Dance music is music composed specifically to facilitate or accompany dancing.  It can be either a whole musical piece or part of a larger musical arrangement.  In terms of performance, the major categories are live dance music and recorded dance music.  While there exist attestations of the combination of dance and music in ancient times (for example Ancient Greek vases sometimes show dancers accompanied by musicians), the earliest Western dance music that we can still reproduce with a degree of certainty are the surviving medieval dances.  In the Baroque period, the major dance styles were noble court dances (see Baroque dance).  In the classical music era, the minuet was frequently used as a third movement, although in this context it would not accompany any dancing.  The waltz also arose later in the classical era.  Both remained part of the romantic music period, which also saw the rise of various other nationalistic dance forms like the barcarolle, mazurka, ecossaise, ballade and polonaise. Chic-a-Go-Go is a public-access television cable television children's dance show that airs on Chicago Access Network Television (CAN-TV).  The show bills itself as "Chicago's Dance Show for Kids of All Ages". Cecilia Ehrling, (born 22 May 1984) is a Swedish competitive dancer.  She has won the TV4 dance show "Let's Dance" three times, in 2007 along with Martin Lidberg and in 2010 with Mattias Andréasson and in 2013 she won with Markoolio.  She has participated in the dance show every year since the 2007, dancing with celebrities like Richard Herrey, Anders Bagge, Anders Timell and Steffo Törnquist.  In 2015, competed in Let's Dance 2015 where she teamed up with Ingemar Stenmark.  She participated in Let's Dance 2016 with Johan Rabaeus the couple became the second to be voted off. The New Dance Show was a television series in Detroit, Michigan, which ran on WGPR-TV 62 (now a CBS affiliate known as WWJ-TV).  Hosted by R.J Watkins, "The New Dance Show" was a low-budget local version of "One Direction" and featured regular dancers, including a man who dressed like a Gypsy and wore a cape, and a woman who dressed as a boxer. Gorka Márquez (born 4 September 1990) is a Spanish dancer and choreographer, best known as a professional dancer on the BBC One dance series "Strictly Come Dancing".  He has also appeared on live dance show, "Burn the Floor". Lauren Gottlieb (born 8 June 1988) is an American dancer and actress from Scottsdale, Arizona.  She was a contestant on the third season of the reality dance competition "So You Think You Can Dance" and played the lead role in the 2013 Indian dance film "".  She was the runner up in the popular Indian television dance show "Jhalak Dikhhla Jaa" (season 6) with choreographer and partner Punit Pathak.  She was also a Judge in the Indian television dance show "Jhalak Dikhhla Jaa". Charles Moulton (born July 13, 1954) is an American choreographer and visual artist who has staged dances on Mikhail Baryshnikov’s White Oak Project, The Joffrey Ballet, The Lar Lubovitch Dance Company, The Ohio Ballet, Oregon Ballet Theater, Gauthier Dance (Stuttgart), and many other companies in the US and abroad.  He is a Guggenheim Award winner, a Dorothy Chandler Arts Achievement winner and a co-founding director of Performance Space 122 in downtown Manhattan.  He is currently co-artistic director of Garrett + Moulton Productions, a San Francisco based performing arts organization that presents live dance and music. Dance Suomi, or simply "Dance", is a Finnish televised dance competition with a format based on the American dance show "So You Think You Can Dance".  As with other shows in the "So You Think You Can Dance" franchise, the competition places young dancers from a wide variety of stylistic backgrounds in competition, with a combination of judge decisions and at-home-viewer votes deciding who persists in the competition from week to week.  The show is hosted by television personality Caro Axel Smith (credited as "Axl" Smith) and has a judge's panel formed by Marco Bjurström and Merja Satulehto, with a third rotating seat for guest judges.  The first season's winner, awarded a cash prize and a dance school scholarship opportunity in New York, was Sam Vaherlehto. Burn the Floor is a live dance show which has performed around the world, including on Broadway in New York City and the West End in London.  Since 1997, Burn the Floor has performed in over 130 countries worldwide.  The show has also featured several alumni of various international versions of "Dancing with the Stars" and "So You Think You Can Dance".
Answer: 1997