Listen to I Know a Guy online. I Know a Guy is an English language song and is sung by Corey Cott, James Nathan Hopkins, Brandon J. Ellis, Alex Bender, Geoff Packard, Joe Carroll and Bandstand Ensemble. I Know a Guy, from the album Bandstand (Original Broadway Cast Recording), was released in the year 2017. The duration of the song is 3:11. Download English songs online from JioSaavn.