Yoko Ono has always denied requests to cover "Imagine" with the line "no religion, too" omitted or changed.
George Harrison's 1971 song "Bangla Desh" was the first major charity single. It was part of a concert held to bring relief to the people of Bangladesh, who were fighting for independence and suffering from a famine.
Cher had a habit of calling people "babe," which her husband, Sonny Bono, picked up. That's how "babe" landed in the 1965 Sonny & Cher megahit "I Got You Babe."
Ariana Grande's hit "Problem" started off as a track written by One Direction songwriter Savan Kotecha. He gave it the working title of "The Whisper Song," after a 2005 Ying Yang Twins hit.
"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.
The Split Enz song "Six Months In A Leaky Boat" is about the journey explorers made from Europe to colonize Australia and New Zealand, where the band is from.
The stories behind the biggest hit songs about trucking.
With the rise of Kindie rock, more musicians are embracing their inner child with tunes for tots - here, we look at pop stars who recorded kids' albums.
The trail runs from flying saucer songs in the '50s, through Bowie, blink-182 and Katy Perry.
A scholarly analysis of yacht rock favorites ("Steal Away," "Baker Street"...) with a member of the leading YR cover band.
Since emerging from MySpace with her hit "Bubbly," Colbie has become a top songwriter, even crafting a hit with Taylor Swift.
Iron Maiden, Adele, Toto, Eminem and Earth, Wind & Fire are just some of the artists with songs directly inspired by movies - and not always good ones.