George Robert Crosby (August 23, 1913 – March 9, 1993) was an American jazz singer and bandleader, best known for his group the Bob-Cats, which formed around 1935. The Bob-Cats were a New Orleans Dixieland-style jazz octet. He was the younger brother of famed singer and actor Bing Crosby. On TV, Bob Crosby guest-starred in The Gisele MacKenzie Show. He was also a regular cast member of The Jack Benny Program, on both radio and television, taking over the role of bandleader after Phil Harris' departure. Crosby hosted his own afternoon TV variety show on CBS, The Bob Crosby Show (1953–1957). Crosby received two stars on the Hollywood Walk of Fame, for television and radio.

[biography (excerpted) from Wikipedia]