Neither Peter Frampton nor Lynyrd Skynyrd ever had a #1 hit, but when Will To Power mashed up their songs "Baby, I Love Your Way" and "Free Bird" into a lite-rock medley in 1988, it hit the top spot.
Pink Floyd's "Run Like Hell" was released as a single in America because it has a catchy beat, but the lyrics describe a reign of terror instigated by the despot Pink, the main character in the concept album The Wall.
Jay-Z did the rap on Beyoncé's "Crazy In Love" at the last minute. They had just started dating; she asked him to feature on the track the night before she had to turn in her album.
Many assumed Train's breakthrough hit, "Drops Of Jupiter (Tell Me)," is about a woman who leaves a relationship to find herself. Lead singer Pat Monahan actually wrote it after having a dream about his mother, who was "back in the atmosphere" after dying of cancer.
Simon Rex from the TV show What I Like About You and Wilmer Valderrama from That 70s Show both appear in the LMFAO video for "Sexy and I Know It."
Katy Perry says her 2008 song "Ur So Gay" is about "guys who wear the guyliner, steal your jeans, and that whole almost hipster emo scene."
Known in America for the hit "If You Leave," OMD is a huge influence on modern electronic music.
David Gray explains the significance of the word "Babylon," and talks about how songs are a form of active imagination, with lyrics that reveal what's inside us.
Genesis' key-man re-examines his solo career and the early days of music video.
The head of Drake's estate shares his insights on the late folk singer's life and music.
Wes Edwards takes us behind the scenes of videos he shot for Jason Aldean, Dierks Bentley and Chase Bryant. The train was real - the airplane was not.
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.