Songwriter Wayne Carson came up with "Always On My Mind" on the phone to his wife when he was apologizing to her for being stuck at the office.
The most famous song to prominently feature a French horn is "God Only Knows" by The Beach Boys.
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.
A problem with his eyes gave Jackson Browne the idea for "Doctor My Eyes," which became a song about a man whose mental health suffers when he sees the world for what it really is.
The Ozzy Osbourne song "Mr. Crowley" is about Aleister Crowley, a British practitioner of dark magic in the early 1900s.
"Back In The U.S.S.R." by The Beatles was play on "California Girls" by The Beach Boys, with "Moscow girls" and "Ukraine girls" instead of the all-American girls.
It wasn't her biggest hit as a songwriter (that would be "Bette Davis Eyes"), but "Put a Little Love in Your Heart" had a family connection for Jackie.
Fishbone has always enjoyed much more acclaim than popularity - Angelo might know why.
In this talk from the '80s, the Kansas frontman talks turning to God and writing "Dust In The Wind."
Collaborating with T Bone Burnett, Leslie Phillips changed her name and left her Christian label behind - Robert Plant, who recorded one of her songs on Raising Sand, is a fan.
Deep Purple's guitarist since 1994, Steve talks about writing songs with the band and how he puts his own spin on "Smoke On The Water."
What happens when Kurt Cobain, Iron Maiden and Johnny Lydon are told to lip-synch? Some hilarious "performances."