"Coming Home" by Diddy - Dirty Money was written for for T.I., who was getting out of prison at the time.
In Led Zeppelin's "Fool In The Rain," the guy goes into a funk when he thinks he's been stood up, but is elated when he realizes he's been standing on the wrong corner, and it's all a terrible mess.
All The Young Dudes "carry the news" because it was intended for a David Bowie concept album where Ziggy Stardust spreads the news in a world with electricity.
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.
Don't play "I Will Always Love You" at your wedding - Dolly Parton wrote it about leaving someone behind to strike out on her own.
Bruce Springsteen's "Streets Of Philadelphia" won the Oscar for Best Original Song in 1994, beating out Neil Young's "Philadelphia," which was also written for the movie Philadelphia.
The trail runs from flying saucer songs in the '50s, through Bowie, blink-182 and Katy Perry.
Despite appearances on Carson, Leno and a Pennebaker film, Williams remains a hidden treasure.
In this quiz, spot the artist who put Romeo into a song lyric.
What's the deal with "Summer of '69"? Bryan explains what the song is really about, and shares more of his songwriting insights.
When Dave recorded the first version of the song with his group the Blasters, producer Nick Lowe gave him some life-changing advice.
When singers started spoofing their own songs on Sesame Street, the results were both educational and hilarious - here are the best of them.