"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.
Joni Mitchell's "Big Yellow Taxi" is about the commercialization of Hawaii. On her first trip to the islands, she looked out of her hotel window and saw a parking lot as far as the eye could see.
The Eagles' first single, "Take It Easy," was written by Jackson Browne, who was living in the apartment below Glenn Frey when he wrote it.
The line "satellite of love" in the Def Leppard song "Rocket" came from the title of a 1972 Lou Reed song.
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.
Irving Berlin said "God Bless America" was "not a patriotic song, but rather an expression of gratitude."
Our chat with Barney Hoskyns, who covers the wild years of Woodstock - the town, not the festival - in his book Small Town Talk.
JJ talks about The Stranglers' signature sound - keyboard and bass - which isn't your typical strain of punk rock.
Dwarfs on stage with an oversize Stonehenge set? Dabbling in Satanism? Find out which Spinal Tap-moments were true for Black Sabbath.
Doubt led to drive for Francis, who still isn't sure why one of Status Quo's biggest hits is so beloved.
Keyboard great David Sancious talks about his work with Sting, Seal, Springsteen, Clapton and Aretha, and explains what quantum physics has to do with making music.
Lyrics don't always follow the rules of grammar. Can you spot the ones that don't?