Michael Jackson wrote the Diana Ross hit "Muscles," which he named after his pet boa constrictor.
One of the first hit songs used in a major marketing campaign was "Start Me Up" by The Rolling Stones. Microsoft paid $3 million to use it in commercials for Windows '95.
Tina Turner hated "What's Love Got To Do With It" but when her manager convinced her to record it anyway, it became her big comeback hit.
Irving Berlin said "God Bless America" was "not a patriotic song, but rather an expression of gratitude."
Rachel Platten refused to talk politics when her "Fight Song" became the anthem for Hillary Clinton's 2016 presidential campaign, a decision she came to regret.
"Rhiannon" is a Welch goddess. Stevie Nicks wrote the song, and it was a huge influence on her image, inspiring her flowing shawls and black outfits she began wearing on stage.
"London Bridge," "Ring Around the Rosie" and "It's Raining, It's Pouring" are just a few examples of shockingly morbid children's songs.
Shows like Dawson's Creek, Grey's Anatomy and Buffy the Vampire Slayer changed the way songs were heard on TV, and produced some hits in the process.
Before "Rap" was a form of music, it was something guys did to pick up girls in nightclubs. Donnie talks about "The Rapper" and reveals the identity of Leah.
Kooper produced Lynyrd Skynyrd, played with Dylan and the Stones, and formed BS&T.
At 80 years old, Yoko has 10 #1 Dance hits. She discusses some of her songs and explains what inspired John Lennon's return to music in 1980.
Did Eric Clapton really steal George's wife? What's the George Harrison-Monty Python connection? Set the record straight with our Fact or Fiction quiz.