"In-A-Gadda-Da-Vida" was supposed to be titled "In The Garden Of Eden," but someone in the studio wrote down the title phonetically, and it stuck.
John Lennon got the title of the Beatles song "Happiness Is A Warm Gun" from an article in a magazine published by the National Rifle Association.
The most famous song to prominently feature a French horn is "God Only Knows" by The Beach Boys.
MC Skat Kat was created for the remix of "Opposites Attract," which was released as the last single from Paula Abdul's Forever Your Girl album. The team that created the Kat also did a-ha's "Take On Me" video.
Meghan Trainor wrote "Lips Are Movin" in just eight minutes with her writing partner Kevin Kadish.
Kacey Musgraves offered "Follow Your Arrow" to her friend Katy Perry, but Perry thought Musgraves should record the song herself, telling Kacey it seemed "like something that you would totally say."
We ring the Hell's Bells to see what songs and rockers are sincere in their Satanism, and how much of it is an act.
Webb talks about his classic songs "By the Time I Get to Phoenix," "Wichita Lineman" and "MacArthur Park."
The Scorpions and UFO guitarist is also a very prolific songwriter - he explains how he writes with his various groups, and why he was so keen to get out of Germany and into England.
Armed with a childhood spent devouring books, Mike Scott's heart was stolen by the punk rock scene of 1977. Not surprisingly, he would go on to become the most literate of rockers.
Untangling the events that led to the "Stairway To Heaven" lawsuit.
From the lake in "Roundabout" to Sister Bluebird in "Starship Trooper," Jon Anderson talks about how nature and spirituality play into his lyrics for Yes.