Listen to O Du Fröhliche online. O Du Fröhliche is an English language song and is sung by Claus Clausen and Herbert Ernst Groh und Fritz Düttbernd. O Du Fröhliche, from the album O Tannebaum (Old German Christmas Songs), was released in the year 2011. The duration of the song is 3:14. Download English songs online from JioSaavn.