Bobby Brown - Humpin Around The World Tour 1993 Live (Part 2 HD SUPER RARE FOOTAGE) 

I imagine it would’ve happened some point. Man’s was still a teen when don’t be cruel was released. He was 23/24 when this tour happened. He sings from the diaphragm most of the time which leads to uncontrolled breathing, which makes it harder to belt. On top of that him Whitney and Bobby use to be heavy chain cigarettes smokers. This is why Whitney on her 2009 tour she struggling so much on a lot of concert dates to the point that fans started turning on her. Bobby only quit recently and he has sounded better these last 5 years than he did in the early 2010s.