Complex sentence: Being formerly known as a song of FC Metalist Kharkiv fans, later the song became popular not only among the Ukrainian people, but also abroad, including Mexico, Japan, U.S., Canada, Western Europe and so on.
Split into simpler sentences: Being formerly known as a song of FC Metalist Kharkiv fans, later the song became a nation-wide hit in Ukraine. It has also been sung abroad, including Mexico, Japan, U.S., Canada, Western Europe and so on.