Listen to O Jesulein zart online. O Jesulein zart is an English language song and is sung by Bryn Terfel, Welsh National Opera Orchestra, Tecwyn Evans, Côrdydd and Sioned James. O Jesulein zart, from the album Carols & Christmas Songs, was released in the year 2010. The duration of the song is 2:55. Download English songs online from JioSaavn.