Gary Crosby was an American actor and singer. He performed professionally with his brothers as The Crosby Boys, and appeared in several films, including A Private's Affair, Operation Bikini, Girl Happy with Elvis Presley, and Justin Morgan Had a Horse. He also appeared in the series Adam-12. Beyond his acting career, Crosby published a tell-all book about growing up with his father, Bing Crosby, and released the singles Struttin' With Some Barbecue with Louis Armstrong, as well as Play a Simple Melody, and Sam's Song with Bing Crosby.