Listen to Zat You, Santa Claus (Originally Performed by Louis Armstrong) [Instrumental Version] online. Zat You, Santa Claus (Originally Performed by Louis Armstrong) [Instrumental Version] is an English language song and is sung by Merry Music Makers. Zat You, Santa Claus (Originally Performed by Louis Armstrong) [Instrumental Version], from the album 101 Christmas Instrumentals, was released in the year 2013. The duration of the song is 2:44. Download English songs online from JioSaavn.