"Kickstart My Heart" is about all the ways Motley Crue gets their blood flowing without drugs. It was inspired by their bass player Nikki Sixx, who claimed he had to be revived with a shot of adrenaline to the heart after an overdose.
Christina Aguilera did her "Beautiful" vocal in one take; the opening line, "Don't look at me," is something she said to her friend in the studio who was there to offer support.
"Sing" was inspired by a girl that Ed Sheeran met in Las Vegas in the summer of 2013, when "one thing led to another and now she's kissing my mouth."
References to David Bowie, Tom Waits and Allan Ginsburg are peppered into the Bush song "Everything Zen."
Adele got the title "Rolling In The Deep" from the British saying "Roll Deep," which means to look after someone. She was "rolling deep" with her boyfriend until he betrayed her.
The band Simple Minds took their name from the line "He's so simple minded he can't drive his module" in David Bowie's "The Jean Genie."
A top country songwriter, Barry talks about writing hits for Little Big Town, Tim McGraw and Jason Aldean.
Pool balls, magpies and thorns without roses - how well do you know your Tom Waits lyrics?
Do you know the girl singer on Eminem's "Stan"? If so, this quiz is for you.
With a few clues (Works at a diner, dreams of running away), can you name the character in the song?
'80s music ambassadors Wang Chung pick their top tracks of the decade, explaining what makes each one so special.
Joe talks about the challenges of of making a Duke Ellington tribute album, and tells the stories behind some of his hits.