Avicii's "Wake Me Up" was the first ever song to reach 200 million streams on the Spotify music streaming service.
"Uncle John's Band" by the Grateful Dead was the first time the phrase "God Damn" appeared in a commercially-released song.
Bob Marley gave the songwriting credit for "No Woman No Cry" to his friend Vincent Ford, who ran a soup kitchen in Trenchtown, the area of Kingston where Marley grew up.
The motto for Boys Town, which was a Nebraska home for troubled youth, inspired the song "He Ain't Heavy, He's My Brother" by The Hollies.
Icona Pop considers "I Love It" a kiss-off to their boyfriends: "we just wanted to get the song out and get the pigs to hear it," Jawo said.
When Pearl Jam plays "Daughter" live, they usually extend the ending so Eddie Vedder can improvise, saying or singing whatever is on his mind.
What happens when Kurt Cobain, Iron Maiden and Johnny Lydon are told to lip-synch? Some hilarious "performances."
An interview with Frankie Valli, who talks about why his songs - both solo and with The Four Seasons - have endured, and reflects on his time as Rusty Millio on The Sopranos.
For songwriters, Johnny represents the American man. He has been angry, cool, magic, a rebel and, of course, marching home.
Long before Eminem, Justin Bieber and Nicki Minaj created alternate personas, David Bowie, Bono, Joni Mitchell and even Hank Williams took on characters.
Dave reveals the inspiration for "Feelin' Alright" and explains how the first song he ever wrote became the biggest hit for his band Traffic.
The renown rock singer talks about "The House of the Rising Sun" and "Don't Let Me Be Misunderstood."