This weekend, Raquel Welch, a sex symbol of the ’60s and ‘70s who helped pioneer atypically sexy and strong female characters in cinema, celebrated her 75th birthday. Welch made a fur, prehistoric bikini appealing and was often photographed in provocative poses. But she caused a stir when she posed nude for Playboy at the age of 39. It was an unexpected move for a woman her age during that time — but she’s not alone when it comes to women who shocked readers and the popular culture at large by posing for the magazine. Here are other unexpected stars who you might not know took it all off for the magazine.