Listen to Cool (Karaoke Version) [Originally Performed by Gwen Stefani] online. Cool (Karaoke Version) [Originally Performed by Gwen Stefani] is an English language song and is sung by Karaoke Jam Band. Cool (Karaoke Version) [Originally Performed by Gwen Stefani], from the album Karaoke Dynamite, Vol. 14, was released in the year 2017. The duration of the song is 3:10. Download English songs online from JioSaavn.