Enrique Iglesias' single "Bailando" was the first ever Spanish-language song to reach one billion views on YouTube.
"Strawberry Letter 23" by The Brothers Johnson was written by Shuggie Otis, whose girlfriend would send him letters written on strawberry-scented paper.
The Kate Bush song "Running Up That Hill" is about making a deal with God to switch lives with your partner so there would be no more misunderstandings.
Weezer frontman Rivers Cuomo wrote "Beverly Hills" after seeing a photo of the group Wilson Phillips and imagining what it would be like to marry someone famous.
"Coming Home" by Diddy - Dirty Money was originally iwritten for for T.I., who was getting out of prison at the time.
"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.
Richard explains how Joe Walsh kickstarted his career, and why he chose Hazard, Nebraska for a hit.
Long before Eminem, Justin Bieber and Nicki Minaj created alternate personas, David Bowie, Bono, Joni Mitchell and even Hank Williams took on characters.
The 10 biggest "retirement tours" that didn't take.
The leader of the Modern A Cappella movement talks about the genre.
If the name Citizen Dick means anything to you, there's a chance you'll get some of these right.
