12/09/2011 09:28 am ET | Updated Dec 09, 2011

Charlize Theron Promotes 'Young Adult' In Plunging Neckline

She may be 36 years old but Charlize Theron looked every bit the part of a "Young Adult" as she was promoting her new flick on the "Late Show with David Letterman." The bombshell dazzled Thursday night in a tight, plunging neckline black and nude dress.

Theron's newest project comes on the heels of a three-year hiatus -- but now she's back and looking better than ever.

Does Theron's low-cut dress put her in the running to take the trophy in our celebrity battle of the cleavage? You decide.

Check out Theron's sexy dress below:

Battle Of The Celebrity Cleavage (Big Shots)