Will.I.am, literally dreamt up "I Gotta Feelin'." Said the Black Eyed Pea: "Have you ever had a dream where there's a melody in your dream? I'll wake up out of my sleep and record that! 'I Gotta Feelin' was one of those songs."
The guys who wrote "Take Me Out To The Ballgame" had never been to a baseball game but knew it was a good song topic.
A one-ton bell was custom made for AC/DC's "Hell's Bells." The recording was slowed to half speed to make it sound like a more ominous two-ton bell.
The Australian band Jet took their name from the 1973 song of the same by Paul McCartney and Wings.
Jon Bon Jovi earned his first movie credit - Young Guns II - by writing "Blaze Of Glory" for the film.
"Islands in the Stream" was originally written by The Bee Gees as an R&B song. It was originally written by the brothers for Marvin Gaye, however it was recorded instead as a duet by Kenny Rogers and Dolly Parton with the Gibb Brothers also contributing vocals.
Known in America for the hit "If You Leave," OMD is a huge influence on modern electronic music.
When he joined Guns N' Roses in 1990, Matt helped them craft an orchestral sound; his mezzo fortes and pianissimos are all over "November Rain."
Zac tells the story of Hanson's massive hit "MMMbop," and talks about how brotherly bonds effect their music.
Faith No More's bassist, Billy Gould, chats to us about his two new experimental projects, The Talking Book and House of Hayduk, and also shares some stories from the FNM days.
Have you got the smarts to know which of these graduation song stories are real?
His song "Into The Night" is one of the most-played of all time. For Benny, it took him to hell and back.