Listen to Dont You Just Know It online. Dont You Just Know It is an Unknown language song and is sung by Huey (Piano) Smith and The Clowns. Dont You Just Know It, from the album Doo Wop The R&B Vocal Group Sound 1950 to 1960, was released in the year 2015. The duration of the song is 2:35. Download Unknown songs online from JioSaavn.