Ashton rolled up to the premiere of What Happens in Vegas decked out like a total badass with his aviators and bomber jacket. Why he showed up on the red carpet looking like a jaded WW2 pilot, we don't know -- but it's definitely a good look for Kutcher.

We love the jacket. The high wool collar and abundant pocket zippers give it that classic tough guy look -- plenty of places to store switchblades and brass knuckles. Usually, trouble with bomber jackets is that they're cut too baggy, but this one isn't -- and the maroon V-neck keeps it line with his usually laid-back style.

We're not sure who Ashton was staring down when this pic was snapped, but look at those eyes -- they were definitely trying to punk someone out. It looks like he was channeling the Fonz. Intimidating is a word that we'd usually wouldn't associate with Kutcher, but give him a pleather jacket and sunglasses, and he does OK.