The Ukranian entry for the Eurovision Song Contest has been told to choose between going ahead with the nomination or performing concerts in Russia.

27-year-old singer Anna Korsun, who performs as Maruv, was picked to represent her country in this year's annual competition.

However, shortly after the announcement, several Ukranian politicians said she should not be allowed to take part on Ukraine's behalf because she tours in Russia.

​The Ukrainian Culture Ministry has also weighed in, saying that only “patriots who are aware of their responsibility” should be allowed to sing for Ukraine at the annual pop contest while “thousands of heroes are dying for Ukraine's territorial integrity”.

The weirdest Eurovision outfits of all time Show all 10 1 /10 The weirdest Eurovision outfits of all time The weirdest Eurovision outfits of all time Lordi made history in 2006 by becoming the first hard rock act and Finnish artist to win the Eurovision Song Contest in 2006 with the song 'Hard Rock Hallelujah'. Getty Images The weirdest Eurovision outfits of all time In 2007, Andriy Mykhailovych Danylko represented Ukraine at the Eurovision Song Contest as his drag stage persona Verka Serduchka, finishing in second place. AFP/Getty Images The weirdest Eurovision outfits of all time Pop duo Jedward, who became famous after appearing on the sixth series of The X Factor, represented Ireland at the Eurovision Song Contest in 2012, having previously represented the country at the competition the year before. AFP/Getty Images The weirdest Eurovision outfits of all time The Eurovision Song Contest in 2016 opened with a fashion show that saw models donning unusual costumes made from what appeared to be toilet paper strut down the catwalk. Getty Images The weirdest Eurovision outfits of all time Six members from the band 'Buranovskiye Babushki' represented Russia at the Eurovision Song Contest in 2010 while wearing embroidered clothing handed down from generations of Udmurt women. They finished in third place. AFP/Getty Images The weirdest Eurovision outfits of all time Jamie-Lee Kriewitz represented Germany at the Eurovision Song Contest in 2016 when she was 18 years old, performing her song 'Ghost'. Getty Images The weirdest Eurovision outfits of all time Norwegian glam metal band Wig Wam performed as representatives of Norway at the 2005 Eurovision Song Contest, achieving ninth place. Getty Images The weirdest Eurovision outfits of all time In 2008, puppet character Dustin the Turkey represented Ireland at the Eurovision Song Contest, only managing to reach the semi-final. AFP/Getty Images The weirdest Eurovision outfits of all time Lithuanian music group InCulto reached the second final of the Eurovision Song Contest in 2010, announcing the splitting up of their band less than a year later. Getty Images The weirdest Eurovision outfits of all time Pop band Scooch were selected to represent the UK at the European Song Contest in 2007, performing the song 'Flying the Flag (For You)' while dressed as flight attendants. AFP/Getty Images

According to the country's national public broadcaster, she has been offered a contract that would temporarily ban her from playing in Russia. Associated Press reports that she has 24 hours to sign it.

In response, Maruv said she feels organisers are "trying to steal the victory from us", although she is willing to cancel her Russian tour.

Artists with ties to Russia have become more controversial in recent years after tensions increased from when Russia annexed the Ukrainian Crimean peninsula in 2014.

Ukrainian dancer Sergei Polunin, known as the "bad boy" of ballet, has been causing controversy in recent months with stunts such as having a portrait of Vladimir Putin tattooed on his chest, and making statements in support of Russia on social media.

Polunin deleted his Instagram page after a homophobic rant about "feminine" male ballet dancers, which caused him to be dropped from the Paris Opera's production of Swan Lake.