When Dave recorded the first version of the song with his group the Blasters, producer Nick Lowe gave him some life-changing advice.
As Procol Harum's lyricist, Keith wrote the words to "A Whiter Shade Of Pale." We delve into that song and find out how you can form a band when you don't sing or play an instrument.
The drummer for Anthrax is also a key songwriter. He explains how the group puts their songs together and tells the stories behind some of their classics.
"25 or 6 to 4" to "Semi-Charmed Life" - see if you can spot the songs that are really about drugs.
Find out how God and Glam Metal go together from the Stryper frontman.
Does he have beef with Gaga? Is he Sean Lennon's godfather? See if you can tell fact from fiction in the Elton John edition.