What is the nationality of the woman who partnered with Jay McGuiness in the 2015 BBC dance series "Strictly Come Dancing"?
Jay McGuiness:  On 19 December 2015, partnered with Aliona Vilani, he won the 13th series of BBC's "Strictly Come Dancing". Aliona Vilani: Aliona Valeriya Kavanagh (née Vilani on 1 May 1984, Russian: Алёна Валерия Вилани ) is a Russian-Kazakh professional dancer.
Russian