When or where did it all begin? The “art” of seduction. Pinup, glamour, and cheesecake as we generally think of it today began to gain popularity in the 1930’s. It was a time when the image of a pretty girl flourished. Whether it was a painted calendar; advertisement; or the photo pinups of Rita, Betty or Esther that the G.I.’s adorned their footlockers with. Pinup was a uniquely American art form.