The content originally appeared on: CNN (CNN)A young Ukrainian girl who recently performed a moving rendition of the 'Frozen' hit 'Let It Go' for her fellow citizens at a Kyiv bomb shelter is safe in Poland. And in an emotional performance from her host country, the girl honored Ukraine with an a cappella version of its national anthem. Amellia Anisovych, who is 7, according to the BBC, sang the national anthem for an audience of thousands at a benefit concert […]