Cooley High is a 1975 American coming-of-age comedy-drama film that follows the narrative of high school seniors and best friends, Leroy "Preach" Jackson and Richard "Cochise" Morris. Written by Eric Monte and directed by Michael Schultz, the film, primarily shot in Chicago, was a major hit at the box office, grossing over $13 million (USD). The light-hearted-turned-tragic storyline was complemented by a soundtrack featuring many Motown hits.

"It's So Hard to Say Goodbye to Yesterday" is an R&B song written by Motown husband-and-wife songwriting team Freddie Perren and Christine Yarian for the 1975 film Cooley High. In the film, the song is performed by Motown artist G.C. Cameron, whose rendition peaked at number 38 on the Billboard R&B singles chart that same year. Perren also composed the instrumental score for Cooley High, and the B-side to "It's So Hard to Say Goodbye to Yesterday" features two of his score compositions from the film.