If you don't know who
One Direction is ... well, join the club. I think they're like a British version of
Justin Bieber, only there are five of them, which means there's five times the opportunity for young girls to mistake unhealthy childish obsession for real adult love! (But rich people are making money so that makes it okay!) Anyway,
One Direction was apparently doing a gig in Vegas, and decided to bro it out ...