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Easy outfit idea: Break up a monotone look with a bold belt in a different color. This month, Nicole Richie added a patterned style to her sunny Thakoon look, Mila Kunis toughened up a blush pink Dior dress with black leather, Reese Witherspoon reversed hers so the buckle showed in the back, and Kim Kardashian lightened her berry dress with a printed addition. Remember, when shopping for the accessory, stock up on a few different styles. Treat the dress underneath as just the foundation. See more celebrity belt inspiration in the gallery now.

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Mila Kunis is the new face of Christian Dior! The actress is the latest big name to sign on as a celebrity model for the luxury label, as previous campaigns featured Black Swan co-star Natalie Portman, Charlize Theron, Marion Cotillard, and Kate Moss. “I always thought what Dior does is so sophisticated, feminine and beautiful,” Kunis told WWD of her new gig. See more of her modeling photos in the gallery now.