I don't care how good a song is - if it holds back the storyline, stalls the plot, your audience will reject it.
I don't over-sing anymore, which I used to suffer from terribly because I couldn't hear myself.
At 15 I auditioned for 42nd Street in Australia. Dein Perry was in that show. I actually got the job but I couldn't do it because I was only 15. Legally I needed to have another 15-year-old to cover consecutive nights.