1. ‘The Rainbow Connection’ by Jim Henson
The theme from The Muppet Movie is an all-time great lullaby sung with heart from the mossy swamp. The Muppets entire catalogue is filled with fantastic covers (the Animal-centric ‘Bohemian Rhapsody’ is an all-timer) but nothing compares to the frog’s heartfelt signature jam. And should you somehow get bored with the original version, you can find alternate takes ranging from duets with Miss Piggy and Debbie Harry to covers by Willie Nelson, the Dixie Chicks, Lea Salonga, Less Than Jake, the Carpenters, Kacey Musgraves, Gwen Stefani and dozens more. It's not easy being green, but it's very easy to fall in love with this song.