That Time Superman Invented Auto-Tune!!

Batman is posing as a fortune-telling swami to lure a superstitious criminal he's trying to catch, and Superman is helping out by making sure that all of Batman's predictions come true!

Next one up is a toughie, though...

And so Superman invented Auto-Tune several decades early....

Meanwhile, the unnamed singer probably ruined her voice forever by trying to sing through laryngitis...

From World's Finest Comics #73 (1954)