Musician Ronnie James Dio is often credited with popularizing the “sign of the horns” hand gesture—a closed fist with index and pinky fingers extended—in heavy metal music. He said he learned the gesture from his grandmother, an Italian immigrant, who used it to invoke or ward off “the evil eye.” Fellow rockers Geezer Butler and Gene Simmons have also claimed credit for the popular gesture (it is unknown if their grandmothers also inspired them).