Thank you for answering. I have checked the song and the group.The MV and some other information are quite similar to what I described. But the melody was different, and it was not sung by OUTLANDISH.
Still, thank you for paying attention to my question.
Thank you for answering. But please look at the original question that the song was released before 2004. And I am 100% sure about this. I have checked those singers or groups. They are not correct either.