Christina Aguilera did her "Beautiful" vocal in one take; the opening line, "Don't look at me," is something she said to her friend in the studio who was there to offer support.
After Gwen Stefani and Gavin Rossdale coupled up in 1996, Rossdale's Bush bandmates referred to their hit song "Everything Zen" as "Everything Gwen."
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.
U2's "Hold Me, Thrill Me, Kiss Me, Kill Me" from Batman Forever was nominated for both a Golden Globe for Best Original Song and a Razzie for Worst Original Song.
Marilyn Monroe is the subject of Elton John's "Candle In The Wind," but the song is really a look at how we react to celebrities who die young.
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.
Some album art was at least "inspired" by others. A look at some very similar covers.
The lead singer on "Da Doo Ron Ron" and "Then He Kissed Me," La La explains how and why Phil Spector replaced The Crystals with Darlene Love on "He's A Rebel."
The drummer for Anthrax is also a key songwriter. He explains how the group puts their songs together and tells the stories behind some of their classics.
Taylor talks about "The Machine" - the hits, the videos and Clive Davis.
Howard explains his positive songwriting method and how uplifting songs can carry a deeper message.
Songwriting Hall of Famer Linda Perry talks about her songs "What's Up" and "Beautiful," her songwriting process, and her move into film music.