If these past and present celebrity couples are any indication, people really do start to look alike when they're dating — at least when it comes to coordinating outfits. This week, Kim and Kanye made us do a double take in their distressed denim and black coats. Earlier this Fall, at the Las Vegas premiere of Runner, Runner, Justin Timberlake and Jessica Biel also stepped out in the same suited-up look, which reminded us of another time JT matched his other half. Who could forget when he and Britney Spears were a denim-on-denim duo? Other repeat offenders include Jennifer Aniston and Brad Pitt, who coordinated not just together, but also when they dated other people — like the day Brad's hairstyle closely resembled then-girlfriend Gwyneth Paltrow's. Let's look back at some of the most memorable matching moments from celebrity couples!