Since its first issue in 1953, Playboy magazine has become synonymous with all things sexy, sparking an empire of clubs, TV series — who didn't turn on The Girls Next Door after their parents left the room? — and even an OnlyFans equivalent. And with an iconic brand comes equally iconic fans — including a few famous faces who stripped down in pursuit of "pleasure for all."

From Charlize Theron's steamy pictorial to Marge Simpson shaking what her animators gave her, here are 31 celebrities you never knew — or just totally forgot — posed for Playboy.