Listen to I Want a Hippopotamus for Christmas (Instrumental Version) online. I Want a Hippopotamus for Christmas (Instrumental Version) is an English language song and is sung by Piano Christmas, Relaxing Piano Music, Oasis For Piano, Christmas Hits Collective and Christmas Hits. I Want a Hippopotamus for Christmas (Instrumental Version), from the album Children's Christmas Songs on Piano, was released in the year 2016. The duration of the song is 2:40. Download English songs online from JioSaavn.