Kim Kardashian Retro Bombshell Hairstyle

Kim Kardashian knows how to get herself done up in a million gorgeous ways, but this retro glamtastic shot she posted to Twitter is something new and a bit different from her usual look.

What was the occasion?

A photo shoot for her perfume ad.

The bride-to-be, who recently lightened her dark locks, tweeted, "The photo shoot is off to a good start! Gonna be a fun day! Have a great day everyone!"

And then shot us that photo with, "Can u guess which old Hollywood actress I'm inspired by in this look?"

Hmm, we're not sure who inspired it—Rita Hayworth or Veronica Lake or Lauren Bacall?—but we sure like it!

What do you guys think?