Listen to I Whistle a Happy Tune (feat. Alex Stordahl & His Orchestra) online. I Whistle a Happy Tune (feat. Alex Stordahl & His Orchestra) is an English language song and is sung by Frank Sinatra. I Whistle a Happy Tune (feat. Alex Stordahl & His Orchestra), from the album Los 100 Años De Frank Sinatra Vol. 3, was released in the year 2015. The duration of the song is 2:32. Download English songs online from JioSaavn.