Listen to You Don't Know What Love Is online. You Don't Know What Love Is is an English language song and is sung by Dave Grusin. You Don't Know What Love Is, from the album Dave Grusin: Piano, Strings and Moonlight: The Many Moods of Dave Grusin, was released in the year 2017. The duration of the song is 2:46. Download English songs online from JioSaavn.