I wasn't a big fan of "On Fire", at first it looked just well done song with some catchy tunes, but it was a grower to a degree that it popped into your mind and you couldn't get it out, even tho you wouldn't listen to it on your own, but it was with you. I don't know if that will happen with "Discotheque", but to me it starts the same like with "On Fire"... and I can guess how it will end.
Lot of Lith people were eager to send The Roop to Rotterdam even without hearing a new song, for the sake of justice and so on, only way for The Roop to screw it up was a poor song, but it surely didn't happen, a lot of positive reviews, so it's fair to say that we have a winner and it will be the one with huuuge margin. Gabrielius had to come with huge song to beat that, but IMO it didn't happen. He should make it to final, but no one will conquer The Roop.