
"Crank That (Soulja Boy)" was the most successful digital track of 2007 in the US with 2,909,000 downloads. On January 6, 2008 it became the first song ever to sell 3 million digital copies in the States.

"The Battle of Evermore" is the only song Zeppelin ever recorded with a guest vocalist. It features Sandy Denny from Fairport Convention duetting with Robert Plant.

Katy Perry co-wrote Iggy Azalea's hit single "Black Widow." Perry was originally going to sing on the track, but she couldn't fit it into her schedule, so Rita Ora provided the sung vocals instead.

The song title "Cake By The Ocean" originated from DNCE's Swedish producers using the wrong name for the drink "Sex on the Beach."

The Eurythmics' "Sweet Dreams (Are Made Of This)" came top of a 2013 Spotify poll to find out which songs music fans most commonly hear people singing incorrectly. Many believe Annie Lennox is singing: "Sweet dreams are made of cheese, who am I to disagree?"

Musically, the Twisted Sister song "We're Not Gonna Take It" is based on the Christmas tune "O Come All Ye Faithful."
Howard explains his positive songwriting method and how uplifting songs can carry a deeper message.
The Evanescence frontwoman on the songs that have shifted meaning and her foray into kids' music.
The Canadian superstar talks about his sudden rise to fame, and tells the stories behind his hits "Sunglasses At Night," "Boy In The Box" and "Never Surrender."
The man who brought us "Red Skies" and "Saved By Zero" is now an organic farmer in France.
Fagen talks about how the Steely Dan songwriting strategy has changed over the years, and explains why you don't hear many covers of their songs.
The '70s gave us Muppets, disco and Van Halen, all which show up in this groovy quiz.