Did you know that Taylor Swift had a twin sister? No? Well, that’s probably because like Elizabeth Olson — who was confined to the basement of the Full House house until Mary-Kate and Ashley’s careers fizzled — Swift’s banished her evil twin to Japan where she’s had to make a living selling hamburgers fries in a red…

There seems no other explanation for this "Belsen was a gas" name for an Evil Twin jacket, other than it being a pun on Bergen-Belsen, a concentration camp where approximately 50,000 people were murdered. (And, not that it makes much of a difference, didn't even contain gas chambers.) But hey, it's on sale! Update:…