A few more:
Garcia/Grisman: "Friend of the Devil"
Ryan Adams: "Wonderwall"
Eagles: "Take it Easy"
And more of the crazy covers:
Dolly Parton: "Stairway to Heaven"
Captain Kirk: "Mr. Tambourine Man" and "Lucy in the Sky with Diamonds"
Sebastian Cabot: "It Ain't Me Babe"
Andy Griffith: "House of the Rising Sun"
And an entire album:
Easy Star All-Stars: "Dub Side of the Moon"