A gospel choir appears in Sam Smith's "Stay With Me" video, but the vocals on the song are all Smith - about 20 tracks of his voice were used to make him sound like a chorus.
"Cum On Feel The Noise" was originally recorded by the British glam band Slade in 1973. Quiet Riot had their first hit with the song when they recorded it in 1983.
Running 7:58, Meat Loaf's "I'd Do Anything For Love (But I Won't Do That)" is the longest-ever #1 hit.
The song "Sadeness" by Enigma (the one with the chanting monks), got its name from the French novelist Marquis de Sade, who believed sex had to be painful in order to be pleasurable - thus the word "sadism."
"It's the End of the World As We Know It (And I Feel Fine)" was inspired by a dream where Michael Stipe conjured up images of people with the initials L.B.: Lester Bangs, Leonid Breshnev, Lenny Bruce and Leonard Bernstein.
Elton John's #1 hit "Island Girl" is about a prostitute.
These overtly religious songs crossed over to the pop charts, despite resistance from fans, and in many cases, churches.
Famous songs that lent their titles - and in some cases storylines - to movies.
Katy Perry mentions McDonald's, Beyoncé calls out Red Lobster, and Supertramp shouts out Taco Bell - we found the 10 restaurants most often mentioned in songs.
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.
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.
Martyn talks about producing Tina Turner, some Heaven 17 hits, and his work with the British Electric Foundation.