Ladies in red!

For many stars, a classic red lipstick is as much of an accessory as a pair of basic black pumps. Not to mention, a bright scarlet pout is a surefire way to get noticed.

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"Red lipstick makes your teeth look very white," Michelle Trachtenberg explains to Us Weekly. "I feel like whenever a man sees a woman wearing red lipstick, they immediately think of sexy, naughty things."

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By choosing the stand-out color, you're putting your face front and center and for Bethenny Frankel, it's a big confidence boost!

"Red, I believe, is a color that comes with confidence," the Bravo star tells Us. "Confidence, luck and courage -- I think that's what every woman needs!"

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But for other celebs, a bold, polished lip serves a different agenda.

"I don't like to wear a lot of eye makeup, and sometimes I don't really want to do it at all! Red lips are an easy way to look done," says Whitney Port.

For more ways to pull off the bold, scarlet hue, click through Us' gallery of celebs who love wearing red lipstick.

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