Sexy Stars: Erin Andrews flashes her undies and Susan Sarandon is a total babe in red

Skin is in!

With all the skin-bering styles on the red carpet this week, we momentarily forgot it's still the middle of winter.

"Dancing With the Stars" host Erin Andrews flashed her undies in a see-through off-the-shoulder ensemble, while Sienna Miller exposed a bit of her lady parts in a floral frock of the same sheerness.

Paris Hilton was quite the social butterfly this week, hitting it out of the ballpark in the style department on several occasions.

And of course, Catherine Zeta-Jones looked flawless in a classic LBD that hugged her teeny frame.

Check out all the sexy looks from the week in the slideshow above!