Listen to When I Grow Too Old to Dream online. When I Grow Too Old to Dream is an Unknown language song and is sung by Dizzy Gillespie. When I Grow Too Old to Dream, from the album The Dizzy Gillespie Story, 1939-1950 (Remastered Version) (Doxy Collection), was released in the year 2018. The duration of the song is 2:57. Download Unknown songs online from JioSaavn.