Allen explained the song as, "about getting into a fight and saying, 'I've done everything I can do. I know that I'm wrong, but I'm too stubborn to admit it.'" He added: "I think a lot of people can relate to that. I want people to hear the songs and think, 'I've been through that. Kris is like me.' Because I am."
David Bowie's "Space Oddity" tells the story of an astronaut who cuts off communication and floats into space. The BBC used it extensively in their coverage of the 1969 moon landing - an odd choice considering the lyrics.
"Sloop John B" is a traditional West Indian folk song, and it was a huge hit for The Beach Boys in 1966. They tweaked the lyric, "This is the worst trip since I've been born" to "...I've ever been on" as a wink to acid culture.