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Gabrielle Union and Sanaa Lathan - This hasn’t been scientifically proven (yet!) but we’re pretty sure that best friends who shop together, stay together. Check out these stylish pairs whose friendships are just as strong as their sense of style. By Patrice Peck (Photo: Sanaa Lathan via Instagram)

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Cassie and Lauren London - Confidence is always the best fashion accessory and both Cassie and Lauren London have that quality by the truckload. These two could make even a pair of potato sacks look couture! (Photo: Lauren London via Instagram)

Photo By Photo: Lauren London via Instagram

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Karrueche Tran and Christina Milian - Whether hitting the red carpet for a premiere or turning up at their favorite L.A. nightclubs, gal pals Karrueche Tran and Christina Milian make the West coast look like the place to be. (Photo: Karrueche Tran via Instagram)

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Cara Delevingne and Jourdan Dunn - These British beauties with matching tattoos have rocked runways for countless top designers and fashion houses. We can only imagine what it must be like to borrow and swap with a supermodel friend! (Photos from left: Cara Delevingne via Instagram, Jim Spellman/WireImage)

Photo By Photos from left: Cara Delevingne via Instagram

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Rihanna and Melissa Forde - If Rihanna is in the building, it’s very likely that her Bajan bestie Melissa Forde is a stone's throw away. Hardly a day has gone by when Rih hasn't had her BFF by her side. And with Rihanna no longer on Instagram, we pretty much rely on Melissa’s IG for the hottest looks and fashion inspiration. (Photo: Mike Ehrmann/Getty Images)

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LaLa Anthony and Po Johnson - LaLa Anthony and Po Johnson have been best friends since way back when, even before LaLa struck stardom as a VJ on MTV. The combination of Po’s quirky spirit and La’s fun-loving personality make for a solid friendship and a killer wardrobe. (Photo: Popo Johnson via Instagram)

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Beyoncé and Kelly Rowland - Bey and Kelly have been hanging tough through thick and thin forever. While they’re no longer joined to the hip anymore and rocking the same bedazzled outfits, these two superstars have already made it into the fashion history books. (Photo: Iam.Beyonce.com)

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Solange Knowles and Melina Matsoukas - With Solange Knowles having emerged as one of fashion’s most unexpected “It” girla and Melina Matsoukas having shot some of the most critically claimed music videos ("We Found Love," anyone?) it’s no surprise that these two cool chicks are buddies. This selfie that the songstress shot while on vacation in Jamaica gives us a quick glimpse into their fun and fly friendship. (Photo: Solange Knowles via Instagram)

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Khloe Kardashian and Malika Haqq - Friends since their teen years, this fashion-forward pair make reality television look good. The proof is in the way they put their curves on display in one figure-hugging outfit after another.(Photo: Malika Haqq via Instagram)

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Kim Kardashian and Ciara - Between their collaborations with well-known fashion brands like Riccardo Tisci's Givenchy and their love for designer labels, it’s probably safe to say that BFFs Kim and Ciara see eye to eye when it comes to style. (Photo: Kim Kardashian via Instagram)

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Rita Ora and Iggy Azalea - “Black Widow” collaborators and close friends Rita Ora and Iggy Azalea are the new kids on the block who have taken the summer by storm. Their bold, sometimes racy outfits typically push the conventional rules of fashion, but weren’t rules made to be broken? (Photo: Danny Martindale/WireImage)