Avril Lavigne's 2011 song "Darlin" was written much earlier; she says it's the second song she ever wrote, composed when she was an unsigned 15-year-old living in Napanee, Ontario. The song reflects those years when she was "trying to figure it all out."
Jethro Tull lead singer Ian Anderson wrote "Aqualung" after looking at pictures of homeless men that his wife took. She got a co-writing credit on the song.
The hit duet "Somewhere Out There" was written for an animated film about a family of immigrant mice who lose one of their young.
The very American song "What Made Milwaukee Famous" was never a big hit in the US, but Rod Stewart made it famous in the UK.
Weezer's "Undone - The Sweater Song" was written as a sad song about depression, but listeners heard it as a funny, ironic song.
Whitney Houston's "I Wanna Dance With Somebody" is a joyful-sounding song with lyrics that are surprisingly somber: "when the night falls, loneliness calls." It's co-writer explained: "Many of our friends were in this boat - 5 o'clock comes around, they start getting restless."
Kooper produced Lynyrd Skynyrd, played with Dylan and the Stones, and formed BS&T.
One of the most dynamic bass player/songwriters of his time, Chris is the only member of Yes who has been with the band since they formed in 1968.
The Red Hot Chili Peppers have some rather unusual song titles - see if you can spot the real ones.
When you have a song called "Fire," it's tempting to set one - these guys did.
'80s music ambassadors Wang Chung pick their top tracks of the decade, explaining what makes each one so special.
Writing great prog metal isn't easy, especially when it's for 60 musicians.