I don't even own a DAW, I'm just a troll.
That was falsetto, not true voice. And that goes for a lot of those supersonic rock singers (Plant, Gillan, King Diamond, etc.)...besides guys like Ronnie Dio and Graham Bonnet, who were more chest-pull oriented in technique and rarely took the easy fake-out.Back in the 90's there is this band called Steelheart and the dude pulls of a G above tenor high C in a song known as Angel Eyes or Never Let You Go.
Actually, Dio and Bonnet were supernaturally high for male singers of any stripe (pretty sure Dio hit Eb over C a number of times full voice, while Bonnet hit a few yoweling As)...so they're the exception to the falsettic rule lol.