Modern-day Hollywood actresses (including Scarlett Johansson, Christina Aguilera and Hayden Panettiere) pose as famous pin-up girls

In celebration of J. J. Abrams' bold decision to bring back the boots and mini skirts in the new Star Trek film, here's a collection of retro pin-up-girl photos featuring current Hollywood actresses. Enjoy:

Scarlett Johansson:

Alexis Bledel:

More pics below the jump: