In 2011, X-Factor Ukraine had contestant Aida Nikolaichuk take the stage, but when she opened her mouth, the judges couldn't believe what was coming out.

The song sounded so perfect, that the judges stopped Aida in the middle of her performance to ensure she wasn't lip syncing. After singing an acapella rendition of the same song, the judges came to realize the incredible voice was actually coming from the girl and gave her the full credit she deserved.

The video is not in English but you can still tell exactly what is going on by the look on everyone's face. It's definitely worth a watch! Let me know what you think of Aida Nikolaichuk and her incredible talent!