Christina Aguilera LIVE
Chest Voice singing is actually 'unhealthy' for you, compared to Head Voice singing. I can't really explain it to you because this isn't exactly my forte, but with the 'grinding/growling' she does, the way she hits highnotes and her voice splitting (it can be noted if you listen closely), and ALWAYS singing live with those techniques wore her voice out.
It's kind of inevitable when you have believe in true things like Aguilera; she hates lipsynching.
