<Tr> <Th> Instruments </Th> <Td> Vocals </Td> </Tr> <Tr> <Th> Years active </Th> <Td> 2011--present </Td> </Tr> <P> Aida Yurijivna Nikolaychuk, sometimes spelled Nikolaichuk, (Ukrainian: Аїда Юріївна Ніколайчук) is a Ukrainian pop singer and model . She was the winner of the third season of Ukraine's X-Factor TV talent competition in 2012 . She drew special attention during the show's second season when judges interrupted her performance of Polina Gagarina's Lullaby (Колыбельная, Kalybelnaya), suspecting her voice was actually a digital recording . They challenged her to sing the song a cappella . Although visibly surprised, Nikolaychuk sang the song equally well without accompaniment . </P> <P> Nikolaychuk was born on 3 March 1982 in Odessa, Ukrainian SSR, Soviet Union . She started singing in the first grade, when she became the school choir soloist, and later on performed at school as a hip hop backup singer until 2002, and in her school choir in the fifth and eighth grades . </P>

X factor judges thought she was lip syncing