The title track of Peace's second album, this was penned by Harry Koisser on tour in Australia. He told NME: "You can tell from the atmosphere of it that it's not a happy song – it's not like Pharrell's 'Happy.'"
Producer Jim Abbiss recorded the drums for this song onto vinyl, then taped the turntable playing the drums. According to Koisser, this was for "a bit of analogue warmth."
"(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.