Justin wrote the classic "Nights In White Satin," but his fondest musical memories are from a different decade.
Deep Purple's guitarist since 1994, Steve talks about writing songs with the band and how he puts his own spin on "Smoke On The Water."
He wrote "She Blinded Me With Science" so he could direct a video about a home for deranged scientists.
With the rise of Kindie rock, more musicians are embracing their inner child with tunes for tots - here, we look at pop stars who recorded kids' albums.
"25 or 6 to 4" to "Semi-Charmed Life" - see if you can spot the songs that are really about drugs.
Known in America for the hit "If You Leave," OMD is a huge influence on modern electronic music.