Hairspray has locked styles into place for a long time—since the twentieth century, in fact. Back then, some clever folks would concoct sugar-water mixtures to keep their hairstyles still.

The recipe for some of Stewart's hairstyles ... as if it's a case of too much and not enough at the same time -- too much pomade or wax, and too little hairspray. Applying too much styling ...

and heavy hairspray. The bigger the better. Prepare to relive the rise of Calvin Klein jeans by Brooke Shields, Pac-Man, the Walkman, Jane Fonda's workout videos, and, of course, the hairstyles.