Ariana Grande's collaboration with Zedd, "Break Free" came about after the Russian-German producer overheard Grande performing at a label showcase while he was backstage, and he mentioned to his team that he wanted to work with her.
The first single to simultaneously top the UK and US charts was The Everly Brothers' "Cathy's Clown" in May 1960.
There really is a China Grove (in Texas), but Tom Johnston didn't know about it when he wrote the Doobie Brothers song.
Psy's "Gangnam Style" refers to a section of Seoul, South Korea, that is very fashionable. The guy in the song has all the right moves and loves the ladies.
The lyric to "Hold On" by Wilson Phillips was inspired by Chynna Phillips' struggles with addiction. "Hold on for one more day" is something she heard in AA meetings.
We ring the Hell's Bells to see what songs and rockers are sincere in their Satanism, and how much of it is an act.
Jon Fratelli talks about the band's third album, and the five-year break leading up to it.
Wes Edwards takes us behind the scenes of videos he shot for Jason Aldean, Dierks Bentley and Chase Bryant. The train was real - the airplane was not.
Rob Halford dives into some of his Judas Priest lyrics, talking about his most personal songs and the message behind "You've Got Another Thing Comin'."
The Red Hot Chili Peppers have some rather unusual song titles - see if you can spot the real ones.
Ozzy, Guns N' Roses, Judas Priest and even Michael Bolton show up in this Classic Metal quiz.
