Sing this ballad with all your heart into it (if you dare) and see how well you do.

You can listen to this song with voice in the version of Blue here:

SORRY SEEMS TO BE THE HARDEST WORD (by Blue, featuring Elton John)

Note: in that version they say "what I gotta do to make you...?" (colloquial) and on this video you can see the correct standard construction "what have I got to do to make you...?". But you can sing whichever version you prefer.