I am dying to hear you sing would be more 'intelligible' to me, but nothing wonders when it comes to music, and not just in English, other day I nitpicked a grammar error in a music sang by Roberto Carlos, the very King RC!  Unfortunately, or fortunately; I don´t remember at the moment. So don´t sweat the small thing, guys, I am telling that only for the examplification´s sake.

     For a change, take heed on the changing from "if you don't sing, i will die" to

"If you don't sing, I will die", now only grammatically speaking.