Thanks to the line "shake it like a Polaroid picture," Outkast's "Hey Ya!" made Polaroid cameras cool again. Many other artists have since mentioned Polaroid in their lyrics, including Eminem, Imagine Dragons, Keith Urban, Gorillaz and Tim McGraw.
Radiohead's "Harry Patch (In Memory Of)" is about the last surviving World War I veteran to fight in the trenches.
The first time Jimmy Page, Robert Plant, John Bonham and John Paul Jones all recorded together in the studio was when they backed American singer PJ Proby on his 1969 album Three Week Hero.
Irving Berlin wrote "How Dry I Am" in anticipation of Prohibition, envisioning a bleak future without alcohol.
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.
Sia Furler originally sent "Pretty Hurts" to Katy Perry, but she didn't see the email, so Beyonce ended up recording it instead.
It started with a bouncy MTV classic. Nirvana and MCR made them scary, then Gwen, Avril and Madonna put on the pom poms.
Gramm co-wrote this gorgeous ballad and delivered an inspired vocal, but the song was the beginning of the end of his time with Foreigner.
The top chant artist in the Western world, Krishna Das talks about how these Hindu mantras compare to Christian worship songs.
The Third Day frontman talks about some of the classic songs he wrote with the band, and what changed for his solo country album.
Dean's saga began with "Ariel," a song about falling in love with a Jewish girl from New Jersey.
Jon Anderson breaks down the Yes classic "Seen All Good People" and talks about his 1000 Hands album, which features Chick Corea, Rick Derringer, Ian Anderson, and many other luminaries.