1940s and distributed on transcription discs to American troops in World War II. In 1943, Gaillard was drafted in the United States Army Air Forces and "qualified as a pilot flying [...] B-26 bombers in the Pacific" and resumed his music career on his release from the draft in 1944. Upon his return he released the song "Atomic Cocktail", which featured seemingly lighthearted lyrics laced with symbolism about nuclear war. Gaillard later teamed with bassist Bam Brown. They can be seen in a 1947 motion picture featurette O'Voutie O'Rooney filmed live at one of their nightclub performances. Slim and Bam was featured at the first Cavalcade of Jazz concert held at Wrigley Field in Los Angeles that was produced by Leon Hefflin Sr. on September 23, 1945, along with Count Basie. Gaillard also played for the 2nd Cavalcade of Jazz held at Wrigley Field on October 12, 1946, and played for the 3rd Cavalcade of Jazz held also at Wrigley Field on September 7, 1947. In the late 1940s and early 1950s, Gaillard frequently opened at Birdland for Charlie Parker, Flip Phillips, and Coleman Hawkins. His December 1945 session with Parker and Dizzy Gillespie is notable, both musically and for its relaxed convivial air. "Slim's Jam", from that session, is one of the earliest known recordings of Parker's speaking voice. In 1949 he was playing in San Francisco. Near the end of Part Two of Jack Kerouac's book On the Road is an account of meeting him at a performance there. Gaillard could play several instruments and managed to turn the performance from jazz to comedy. He would play the guitar with his left hand fretting with fingers pointing down over the fingerboard (instead of the usual way up from under it), or would play credible piano solos with his palms facing up. Gaillard wrote the theme song to the Peter Potter radio show. In addition, in 1950 he wrote and recorded the "Don Pitts On the Air" theme for San Francisco DJ Don Pitts. On March 27, 2008, the Pitts theme song entered the archives of the Rock and Roll Hall of Fame in Cleveland, Ohio. In the early 1960s, Gaillard lived in San Diego, California. During that time he recorded several singles and performed with local bands. Under the name Slim Delgado, he recorded a rock and roll single for the Xavier label titled "Frank Rhoads Round" The