Not all backwards messages are terrifying Satanic invocations. On the track “Boys In Black” by all-girl grunge band L7, there’s a brief snippet of garbled speech that, when played backwards, reveals one of the ladies reciting “All beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame seed bun. Two all beef patties.” That’s the recipe for a Big Mac, in case you’ve never worked in food service.