We take a look at some of the best rock 'n' roll collaborations where the guest artist ended up stealing the whole show.

John Mayall, a towering figure in the world of blues, has passed away at the age of 90. Known for his immense influence and prolific output, Mayall was instrumental in shaping the British blues scene.

George Harrison was already ready to pack it in after The Wilburys, but there's a lot more to his final gigs than meets the eye.