Sia Furler originally sent "Pretty Hurts" to Katy Perry, but she didn't see the email, so Beyonce ended up recording it instead.
"Que Sera, Sera (Whatever Will Be, Will Be)" was written for Doris Day to sing in the Alfred Hitchcock movie The Man Who Knew Too Much.
Jay-Z's version of "99 Problems" is a cover of a 1993 song by Ice-T with the lyrics changed to be about Jay's rise to fame.
The Information Society hit "What's On Your Mind (Pure Energy)" samples the voice of Leonard Nimoy (Spock) from an episode of Star Trek.
Avril Lavigne said her Goodbye Lullaby track "Darlin" was "probably" the second song she ever wrote. The Canadian composed it when she was an unsigned 15-year-old living in Napanee, Ontario.
Michael Jackson became the first artist in history to score Top 10 hits in five consecutive decades on the Hot 100 when "Love Never Felt So Good" landed at #9 on the chart dated May 31, 2014.
Some album art was at least "inspired" by others. A look at some very similar covers.
The good doctor shares some candid insights on recording with Phil Spector and The Black Keys.
Revisit the awesome glory of Night Ranger and Damn Yankees: cheesily-acted videos, catchy guitar licks, long hair, and lyrics that are just plain relatable.
Do you know who wrote Patti Smith's biggest hit? How about the Grease theme song? See if you can match the song to the writer.
How a gym teacher, a janitor, and a junkie became part of some very famous band names.