The television show Mad Men’s ascent to popularity has represented the television industry seriously taking sides. In an era where collaborative creation and universal distribution are both buzzwords and reality, they’ve come up with a show that glorifies the top-down, here’s-what-to-think advertising industry of the 60s. Even Mad Men isn’t safe, though, from fan culture: witness this amazing live mash-up of its theme song with the song “Nature Boy” made famous by Nat King Cole. Watch the video after the click.