Jay-Z did the rap on Beyoncé's "Crazy In Love" at the last minute. They had just started dating; she asked him to feature on the track the night before she had to turn in her album.
The Isley Brothers' "That Lady" was sampled by Kendrick Lamar for his 2014 single "I." Lamar turned up at Ronald Isley's house to personally ask permission to borrow from the song.
Jack White titled "Seven Nation Army" after how he would mispronounce "Salvation Army" when he was little.
When Marc Cohn played "True Companion" to his girlfriend, she thought he was proposing. He wasn't, but he did eventually marry her.
Van Halen's first #1 hit was "Jump," an unusual song for the band because the lead instrument was synthesizer, not guitar.
ABBA's Bjorn Ulvaeus and Benny Andersson conceived "Dancing Queen" as a dance song with the working title "Boogaloo," drawing inspiration from the 1974 George McCrae disco hit "Rock Your Baby." Their manager Stig Anderson came up with the title "Dancing Queen."
Was a Beatles song a TV theme? And who came up with those Fresh Prince and Sopranos songs?
Guitarist Tony Iommi on the "Iron Man" riff, the definitive Black Sabbath song, and how Ozzy and Dio compared as songwriters.
How the American gangsta rappers made history by getting banned in the UK.
Nirvana, Billy Joel and Bruce Springsteen are among those who wrote songs with cities that show up in this quiz.
The lead singer of Everclear, Art is also their primary songwriter.
Soul music legend Bill Withers on how life experience and the company you keep leads to classic songs like "Lean On Me."