The Juice

Krysten Ritter dons a gladiator-style dress for her 31st birthday in Las Vegas

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Krysten Ritter may be nothing like her TV character Chloe on "Don't Trust the B---- in Apartment 23," but this bubbly actress took her 31st birthday celebrations straight to Sin City!

"Vegas bound with my peeps! Happy bday to me" she tweeted on Saturday, along with a photo of herself and seven friends with luggage ready to board a plane. From the hotel to dinner to her large-scale party at The Bank nightclub, Ritter kept her fans up to date with all of her fun-and-friends-filled festivities.

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But when it came to the red carpet, Ritter didn't need to take her own pictures -- her gladiator-style Herve Leger dress was attention-grabbing enough on its own. Outside the club, the star's all-black ensemble -- including black boots by Rachel Zoe, a black leather buckle-clad long-sleeve piece, and her signature black hair pulled into a ponytail -- made Ritter look more like she was on her way into a supervillain's secret lair than a birthday party. Or, rather, it made the actress look more like her TV alter ego, the vapid, self-absorbed Chloe -- who is nothing like the real-life Ritter.

"I think I bring lightness to (the role). I'm girly and I like to have a good time and joke around and I think that helps the character not just be evil. I think there's two different ways you can play this character. You could just be an evil, mean person or you could make it fun," the newly-turned-31-year-old actress told the Canadian Press in November.

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However, Ritter didn't keep up her red carpet look for long -- she ditched the gladiator clothes for another black dress in time for her surprise birthday cake. She also kept the birthday celebrations going at Disneyland on Monday, with "the happiest place on Earth" being much more her style.

"Disneyland bday fun with @barrettanne and @andrevippolis" she tweeted on Monday afternoon.