If you're a famous musician, it's easy to feel like you are doing the same thing over and over. Sometimes you just need to mix it up and do something different. Play a style of music you aren't known for, or collaborate with a new group of musicians.
Of course, this can come at a cost, as the "musical side project" is often code for "pretentious, navel-gazing mediocrity." But there are some definite exceptions to this rule, which is why we're debating what belongs on the Rushmore of Musical Side Projects.
SHOW NOTES
Traveling Wilburys (Joint Choice) Monsters of Folk (Michael's Choice) New Pornographers (Richard's Choice) The Glove (Michael's Choice) Power Station (Richard's Choice) Gorillaz (Michael's Choice) The Raconteurs (Richard's Choice)