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The year is 1987. Bon Jovi is blasting on every radio station, "Dirty Dancing" is in theaters nationwide, and the only thing people want more than the numbers of Jon and Baby's personal choreographers is their curly perm hairstyles. Fast forward to today, and a lot has changed since then: the top 100 list, "cool" dance moves, and especially the state of the perm. In fact, the look today is a lot more modern. ( Just ask Jimmy Fallon .)

"The original perm was done with bare tongs that fit together, which were heated on the gas stove," hairstylist Philippe Depeyrot says. "The treatment has come a long way, from hours upon hours on a machine that could burn a person to quick and painless."

Now, the hairstyle is back and bigger than ever — but the techniques and formulations have

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