Their once was a man who had the power to fart on command, not stinky but vocal farts.

This man started by entertaining his children as they cooked and gathered.

Next he was enlisted into the military where he killed his own troop with laughter.

He made it to be a grand performer on stage “The Fartist” playing songs on stage without any instrument….

(Oh I guess he knew most of the time, I forgot the prompt was about discovering a hidden talent.)