"Coming Home" by Diddy - Dirty Money was written for for T.I., who was getting out of prison at the time.
"(What's So Funny 'Bout) Peace, Love, and Understanding" was written by Nick Lowe in 1974. The original version with his group Brinsley Schwarz was kind of somber, but Elvis Costello made it a classic with his 1978 uptempo take.
The song "Sadeness" by Enigma (the one with the chanting monks), got its name from the French novelist Marquis de Sade, who believed sex had to be painful in order to be pleasurable - thus the word "sadism."
"Big Love" is a showcase song for Lindsey Buckingham and the first single from Fleetwood Mac's 1987 album Tango In The Night, but he left the group soon after the album was released and the band didn't perform it live until he returned 10 years later.
Miguel wrote "Adorn" about his girlfriend, the model and artist Nazanin Mandi, when he was returning home from a long trip and was anxious to see her.
John Legend wrote "All Of Me" about his fiancée Chrissy Teigen. He sang it to her at their wedding ceremony in Como, Italy.
The king of Christian worship music explains talks about writing songs for troubled times.
The Evanescence frontwoman on the songs that have shifted meaning and her foray into kids' music.
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."
The lead singer/lyricist of The Beach Boys talks about coming up with the words for "Good Vibrations," "Fun, Fun, Fun," "Kokomo" and other classic songs.
Cain talks about the divine inspirations for "Don't Stop Believin'" and "Faithfully."
The evolution of the symbol that was Prince's name from 1993-2000.