"Улетай на крыльях ветра" which Sissel performed. That same part is used as the refrain on this song. The song is haunting and gorgeous. Kamaliya has an amazing voice.
An uptempo single mix is expected to be released soon along with a full remix package and music video. Fedde Le Grand also remixed this, however, the song sounds radically different at the higher tempo, though he did create an alternate break with just the opera section.
-Listen here (YouTube)
-Buy the song here (iTunes)