Sometimes, a singer turns to a fellow performer for inspiration. And sometimes, the end result can be pretty harsh.
There are many rock artists who not only keep a fierce beat but can lend a hand on vocals. From Ringo to Roger Taylor, some great singing drummers.
A new album and documentary celebrates Joni Mitchell at 75. We take a look at one of the more interesting musical chapters of her career, one that included Billy Idol, Peter Gabriel, Thomas Dolby and more.