Listen to Smile (In the Style of Uncle Kracker) [instrumental Backing Track] online. Smile (In the Style of Uncle Kracker) [instrumental Backing Track] is an English language song and is sung by Original Backing Tracks. Smile (In the Style of Uncle Kracker) [instrumental Backing Track], from the album Karaoke Hits: Rock Voice, was released in the year 2013. The duration of the song is 3:25. Download English songs online from JioSaavn.