The 311 song "Amber" is likely about Nicole Scherzinger, who was dating the band's lead singer Nick Hexum.
"Airplanes" by B.o.B was written by Lupe Fiasco, who recorded it but decided to pass.
Lil Wayne does an unlikely rap in a remix of the Joe Jonas song "Just In Love." The pair met at the 2008 MTV Video Music Awards.
The "Gunter Glieben Glauten Globen" intro in Def Leppard's "Rock Of Ages" is something their producer Mutt Lange came up with when he got tired of counting them "1, 2, 3, 4..."
The Temptations sang backup on "Super Freak" by Rick James. He mentions them in the song when he says, "Temptations, sing!"
Originally a chart-topper for Steve Lawrence in 1962, "Go Away Little Girl" became the first song of the rock era to hit #1 for two different artists when Donny Osmond's cover version also reached the summit in 1971.
JJ talks about The Stranglers' signature sound - keyboard and bass - which isn't your typical strain of punk rock.
Michelle Branch talks about "Everywhere," "The Game Of Love," and her run-in with a Christian broadcasting network.
Joe talks about the challenges of of making a Duke Ellington tribute album, and tells the stories behind some of his hits.
Dwarfs on stage with an oversize Stonehenge set? Dabbling in Satanism? Find out which Spinal Tap-moments were true for Black Sabbath.
For songwriters, Johnny represents the American man. He has been angry, cool, magic, a rebel and, of course, marching home.
