Is This Taylor Swift's Doppelgänger -- Or Another Alter Ego?

Doppelgängers are inherently interesting, partly because there is evidence to support the ancient belief that somewhere in the world, there's probably someone who looks damn near identical to you. And while most people will never run into the 2.0 version of themselves on the street or online, when you are celebrity -- with massive, worldwide reach -- the odds of that happening are significantly higher. Case in point: Taylor Swift. That's right, Swift's very believable lookalike has been identif...