17. Roll Me Up and Smoke Me When I Die - Willie Nelson (2012)
Nelson's current pot anthem is pretty much the theme song for Farm Aid and other major shows he performs with guests joining to sing along. For the peppy studio version (it appears on Heroes), Nelson assembled friends like Snoop Dogg, Kris Kristofferson and Jamey Johnson. "If anyone don't like it," Nelson sings, "just look 'em in the eye/ Roll me up and smoke me when I die." It's also the title of Nelson's latest book.