Six years ago Ukrainian singer Jamala conquered Europe with a song about Soviet leader Joseph Stalin’s deportation of hundreds of thousands of people from her Black Sea homeland of Crimea in World War Two.
“When strangers are coming, they come to your house. They kill you all and say ‘We’re not guilty’,” she sang in a sombre anthem that was the surprise 2016 winner of the Eurovision Song Contest, usually a feast of light-hearted camp.
