You know how it is. You're indulging in a little online fantasy-shopping (would that daisy-print crop top look good on you?), when, suddenly, you see a model who makes you do a double take. Those cheekbones, those eyebrows — hold up, is Cara Delevingne modeling for ASOS now? And, was that Jourdan Dunn we spotted on Nasty Gal?
It's not just your imagination. Either the top supermodels in the world are filling time between Vogue editorials and Burberry campaigns by taking on catalog gigs, or new models are channeling some very familiar faces these days. Ahead, we rounded up the model doppelgängers who routinely make us stop in our tracks. Click on, and tell us: Were the 20 models ahead separated at birth? Or, are good genes just universal?