Originally a chart-topper for Steve Lawrence in 1962 chart-topper, "Go Away Little Girl," became the first song of the rock era to be taken to #1 by two different artists when Donny Osmond's cover version also reached the summit in 1971.
"Do They Know It's Christmas?" by Band-Aid was the first big group charity single. It was organized by Bob Geldof, who a year later put together "We Are The World" and Live Aid.
The first popular song to use the phrase "Heavy Metal" was "Born To Be Wild" by Steppenwolf, which was featured in the movie Easy Rider.
"Should I Stay or Should I Go?" by The Clash features some Spanish lines by the Texas singer Joe Ely.
Many people believe "Hotel California" is about a mental institution called the Camarillo, but the Eagles say it's about materialism and excess.
Ellie Goulding's hit single "Burn" was originally demoed by Leona Lewis for her 2011 Glassheart album. She scrapped the tune when the project was retooled to include more ballads.
From "Some Day My Prince Will Come" to "Let It Go" - how Disney princess songs (and the women who sing them) have evolved.
Emilio talks about what it's like to write and perform with the Tower of Power horns, and why every struggling band should have a friend like Huey Lewis.
Rick Astley on "Never Gonna Give You Up," "Cry For Help," and his remarkable resurgence that gave him another #1 UK album.
Think you know your Bob Dylan lyrics? Take this quiz to find out.
Beef with Bon Jovi? An unfortunate Spandex period? See if you can spot the true stories in this Metallica version of Fact or Fiction.
Switchfoot's frontman and main songwriter on what inspires the songs and how he got the freedom to say exactly what he means.