Listen to Happiness online. Happiness is an English language song and is sung by Joshua Colley, Gregory Diaz, Aidan Gemme, Milly Shapiro, Mavis Simpson-Ernst and Jeremy T. Villas. Happiness, from the album You're a Good Man, Charlie Brown (2016 Off-Broadway Cast Recording), was released in the year 2016. The duration of the song is 4:01. Download English songs online from JioSaavn.