Disney put together a compilation called The Green Album for the next Muppets Movie. It includes Muppets-related covers by folks like Weezer (of course), Andrew Bird, Sondre Lerche, and My Morning Jacket, who take on "Our World," a song that first appeared in Emmet Otter's Jug-Band Christmas back in 1977, a year that includes a whole lot of history. MMJ ...