This was the first song that Jason Derulo ever wrote. He was eight years old at the time and the future star penned it for a classmate called Amy Hume. Derulo recalled to Time: "It was about my crush on a girl in my class. Her name was Amy, and I wanted to write her a song because I didn't have any money. So, you know, I wanted to get her to like me, but I didn't know what to get her, so I thought I'd write her a song. I never sang it for her, but it started a long journey of songwriting."
The Boyz II Men hit "It's So Hard To Say Goodbye To Yesterday" is an a capella cover of a song from 1975 by G.C. Cameron that was used in the movie Cooley High to express the feeling of parting ways with high school friends.
John Lennon wrote "The Continuing Story of Bungalow Bill" about Richard Cooke, a hunter he met at the Maharishi's camp in India. Cooke hasn't shot anything since the camp, except with his camera - he became a freelance photographer for National Geographic.