Nelson makes one of his occasional dips into the Great American Songbook for What a Wonderful World, which features his renditions of "Moon River," "Twilight Time," and "Spanish Eyes," another successful duet with Julio Iglesias. ~ Jason Ankeny, All Music Guide
Willie Nelson (Guitar), Willie Nelson (Vocals), Willie Nelson (Main Performer), Julio Iglesias (Performer), Julio Iglesias (?), Bobby Wood (Keyboards), Bobby Wood (Vocals (Background)), Mickey Raphael (Harmonica), Carlos Alvarez (Engineer), Bobby Arnold (Assistant Engineer), David Cherry (Engineer), Gene Chrisman (Drums), Johnny Christopher (Guitar), Johnny Christopher (Vocals (Background)), Bobby Emmons (Keyboards), Larry Greenhill (Engineer), Mike Leech (Bass), Chips Moman (Guitar), Chips Moman (Producer), Chips Moman (Engineer), Monique Moman (Vocals (Background)), Toni Wine (Vocals (Background)), Reggie Young (Guitar), Bill Johnson (Art Direction), Donald W. Breech M.D. (Photography), Skip McQuinn (Assistant Engineer), Kurt Berge (Assistant Engineer)
