I don't know. I'm not sold. Hmmmmm...
Nessun Dorma was scored for a tenor, not a faux soprano. Puccini leaves that High C open at the end of the aria for the glory of a pure Tenor voice.
It might have been more interesting if he'd done "Vissi D'arte" or "Un Bel Di".
It did have a surreal, Klaus Nomi aspect to it though.
http://www.youtube.com/watch?v=yuSrsGzhD9U