Considering their mutual synonym-status with Cannabis Sativa, some would say that Willie Nelson's hip-hop spirit animal is Snoop Dogg. It's probably true, but that doesn't mean the two would make an album anybody on Earth would ever want to get high to or even hear.

The Roots, however, would likely conjure the outlaw country music master of the 1970s from within the wizened weed-muppet of present day, and restore his rep as a rightful peer of Johnny Cash. It's hard to make an 80-year old man sound dangerous, but with The Roots as your rhythm section, it's less so.