Known in America for the hit "If You Leave," OMD is a huge influence on modern electronic music.
A founding member of the band War, Harold gives a first-person account of one of the most important periods in music history.
Kristian talks songwriting technique, like how the chorus should redefine the story, and how to write a song backwards.
The trail runs from flying saucer songs in the '50s, through Bowie, blink-182 and Katy Perry.
Did Eric Clapton really steal George's wife? What's the George Harrison-Monty Python connection? Set the record straight with our Fact or Fiction quiz.
His keyboard work helped define the Muscle Shoals sound and make him an integral part of many Neil Young recordings. Spooner is also an accomplished songwriter, whose hits include "I'm Your Puppet" and "Cry Like A Baby."