That's the problem I faced too... :( I can understand some words, but not every single. So I thought maybe a native speaker can do... Thank you for your answer anyway.

It's difficult to understand every word of this song because the singer is not a native English speaker, so he has an accent when he sings in English and the speech cadence is not as expected because he's matching the cadence of the melody. Another difficulty is the overlapping voices. A third is that the video doesn't always match the movement of his lips with the words that are being sung, so I can't even try to lip read what he's saying.