Listen to Undecided online. Undecided is an English language song and is sung by George Shearing Quintet and Toots Thielemans. Undecided, from the album História do Jazz 1952-1961: Enciclopédia de Jazz Vol.5, was released in the year 2013. The duration of the song is 2:40. Download English songs online from JioSaavn.