"Forever" by Chris Brown was written for a Wrigley's Doublemint Gum commercial. The full song contains the gum's tagline: "Double your pleasure, double your fun."
Lily Allen wrote "Something's Not Right" for the soundtrack of the Peter Pan prequel, Pan. The song was inspired by the heartache that Allen experienced after suffering a miscarriage when she was six months pregnant with her first child by husband Sam Cooper in 2010.
"Return To Innocence" by Enigma is based on a Taiwanese chant by a husband and wife. The couple won a lawsuit granting them royalties from the song.
Tina Turner hated "What's Love Got To Do With It" but when her manager convinced her to record it anyway, it became her big comeback hit.
An Allen Ginsberg line from his poem Howl inspired "Machinehead" by Bush: "Machine says I saw the best minds of my generation."
"We Will Become Silhouettes" by The Postal Service sounds happy and fun, but it's a very bleak song about a nuclear winter. Lead singer Ben Gibbard wrote the lyric while ruminating over 9/11.
Fishbone has always enjoyed much more acclaim than popularity - Angelo might know why.
Our chat with Barney Hoskyns, who covers the wild years of Woodstock - the town, not the festival - in his book Small Town Talk.
Was Janet secretly married at 18? Did she gain 60 pounds for a movie role that went to Mariah Carey? See what you know about Ms. Jackson.
Have you got the smarts to know which of these graduation song stories are real?
Gramm co-wrote this gorgeous ballad and delivered an inspired vocal, but the song was the beginning of the end of his time with Foreigner.
Established as a redoubtable singer-songwriter, the Men At Work frontman explains how religion, sobriety and Jack Nicholson play into his songwriting.