"He Ain't Heavy, He's My Brother" is a ballad written by Bobby Scott and Bob Russell. Originally recorded by Kelly Gordon in 1969, the song became a worldwide hit for the Hollies later that year and also a hit for Neil Diamond in 1970. It has been recorded by many artists in subsequent years. The Hollies' version was re-released in 1988 and again was a major hit in the UK.

Harold Allan Clarke is an English rock singer, who was one of the founding members and the original lead singer of the Hollies. He achieved international hit singles with the group and is credited as co-writer on several of their best-known songs, including "On a Carousel", "Carrie Anne", "Jennifer Eccles" and "Long Cool Woman in a Black Dress". He retired from performing in 1999, but returned to the music industry in 2019. Clarke was inducted into the Rock and Roll Hall of Fame in 2010.