The album accompanies 20 tracks featuring musical score composed by Randy Newman and the original song "Roar" performed by Axwell and Sebastian Ingrosso from the Swedish House Mafia.

The titular themes were recorded by the Pixar Canada studio team who were projected as the alma mater for the voices of the monster students.

Newman used the clarinet for Mike's theme which changes as his character arc evolves, while the Oozma Kappa fraternity's music being represented with the accordion as a laidback shuffle to introduce Sulley.

"[7] Corey Hall of Metro Times wrote "the jubilant marching band-inspired soundtrack, are enough to keep kids enthralled and parents amused.

"[9] Kimberley Jones of The Austin Chronicle summarized "composer Randy Newman keeps the energy level high with his drumline-heavy score.