Not certain about fatal plane crashes, but have experienced various famous musicians croaking on stage...
Taj Mahal (opening for Edgar Winter/Derringer) when the audience did not want to listen to his “finger piano”.
Van Morrison when he had one of his hissy fits half way through the concert (could have been that the little sissy/dude cowboy outfit he was wearing chafed him the wrong way).
Lee Michaels because but a few hundred people showed up to see him perform in Saint Paul, MN.
Bobby Goldsboro, though I’ve never seen him live I’ve heard that his “cricket sounds” (yes, I realize it’s not croaking sounds, but it’s close enough for this pontunification) are either a hit or a miss.
With no disrespect to the intention of the original poster (which sucks by the way) I hope that others can relate to these less than fatal croakings.