There are a lot of big name artists and singers in both the classical and popular singing genres who are not capable of sustaining two concerts in a row. This usually happens in the popular field when a well-known act is releasing a new album and a big part of promoting this new album is by going on tour with it. Usually halfway through the second performance the lead singer breaks down.
Vocal breakdowns like this are happening at this moment in time to some of the most famous singers in the popular field. It’s a bit like closing the stable door after the horse has bolted. Instead of enjoying success in the very thing they’ve always wanted, these singers are living through a nightmare. Young singers need to pay attention to the fact that this is happening, and set the goal of developing VOCAL FREEDOM before developing any big recording deals.