The "Sign of the Horns" is a hand gesture made by extending the pinky and index fingers while the middle and ring fingers are folded down. This gesture is often associated with various cultures and has different meanings, including protection against evil spirits and a symbol of rock music, particularly in the heavy metal genre. In Italian culture, the gesture is known as "corna" and is used to ward off bad luck. It has also been popularized by musicians like Ronnie James Dio, who helped bring it into the mainstream as a symbol of rock and rebellion.