Martyn talks about producing Tina Turner, some Heaven 17 hits, and his work with the British Electric Foundation.
Elvis, Little Richard and Cheryl Cole have all sung about Teddy Bears, but there is also a terrifying Teddy song from 1932 and a touching trucker Teddy tune from 1976.
On Glen's résumé: hit songwriter, Facebook dominator, and member of Styx.
When a song describes a wedding, it's rarely something to celebrate - with one big exception.
Do you remember the first time you heard "email" in a song? How about "hater" or "Facebook"? Here are the songs where they first showed up.
Just how much did these monsters of rock dabble in the occult?