Listen to Oh Christmas Tree (O Tannenbaum) online. Oh Christmas Tree (O Tannenbaum) is an English language song and is sung by Rudolph The Reindeer. Oh Christmas Tree (O Tannenbaum), from the album Christmas Season: Soothing, Tranquil, Peaceful version of the Most Popular Christmas Songs (Guitar and Piano), was released in the year 2016. The duration of the song is 1:03. Download English songs online from JioSaavn.