Sia Furler originally sent "Pretty Hurts" to Katy Perry, but she didn't see the email, so Beyonce ended up recording it instead.
Puff Daddy didn't get permission to sample the Police song "Every Breath You Take" on his Notorious B.I.G. tribute "I'll Be Missing You," but he later reached an agreement and even performed the song with Sting.
Bruce Springsteen originally wrote "Hungry Heart" for The Ramones, but decided to keep it for himself on the advice of his producer and manager, Jon Landau.
"Step On," the most famous song by the Happy Mondays ("You're twistin' my melon man!") is a thoroughly revamped cover of a song from 1971 about the plight of indigenous peoples called "He's Gonna Step On You Again" by John Kongos.
Mariah Carey's song "The Roof" is about her first kiss with Yankees shortstop Derek Jeter.
In The Beatles' "When I'm 64," Paul McCartney asks a woman if she'll still be there for him when he's 64. In 2006, he got his answer when shortly before his 64th birthday, he and Heather Mills separated.
Billie Jean, Delilah, Sara, Laura and Sharona - do you know who the girls in the songs really are?
The British reggae legend tells the story of his #1 hit "Close To You," talks about his groundbreaking Shabba Ranks collaboration "Housecall," and discusses his latest project with Robin Trower.
Shaun breaks down the Seether songs, including the one about his brother, the one about Ozzy, and the one that may or may not be about his ex-girlfriend Amy Lee.
Rufus Wainwright on "Hallelujah," his album Unfollow The Rules, and getting into his "lyric trance" on 12-hour walks.
The Canadian superstar talks about his sudden rise to fame, and tells the stories behind his hits "Sunglasses At Night," "Boy In The Box" and "Never Surrender."
"Lullaby" singer Shawn Mullins on "Beautiful Wreck," beating the Devil, and his writing credit on the Zac Brown Band song "Toes."