Complex sentence: Alyona Lanskaya also sometimes mentioned as Alena Lanskaya is a Belarusian singer, that will represent her country in the Eurovision Song Contest 2012 in Baku, Azerbaijan.
Split into simpler sentences: Alyona Lanskaya also sometimes mentioned as Alena Lanskaya is a Belarus singer. That will represent her country in the Eurovision Song Contest 2012 in Baku, Azerbaijan.