Al Rinker (December 20, 1907 – June 11, 1982) was an American musician who began his career as a teen performing with Bing Crosby in the early 1920s in Spokane, Washington. In 1925 the pair moved to Los Angeles, eventually forming the Rhythm Boys trio with Harry Barris.Barris wrote the songs "Mississippi Mud", "I Surrender, Dear", and "Wrap Your Troubles in Dreams". The singing group worked with Paul Whiteman's Big Band for three years. They went out on their own for a year until Crosby effectively dissolved the group to go solo.