Do you know how to spell “bologna”? I do, thanks to the iconic Oscar Mayer bologna song, a nostalgic TV commercial that is forever lodged in brains like a blue Jolly Rancher lodged behind a molar.

Oscar Mayer will give consumers who correctly sing “The Bologna song” from its iconic 1974 ad spot a chance to win an Instacart gift card, per details shared with Marketing Dive. The Kraft ...