Freed had played a role in the transformation of black rhythm and blues into rock and roll music, and originally called himself the "Moon Dog" after New York City street musician Moondog. Freed both adopted this name and used a recorded howl to give his early broadcasts a unique character. Smith's adaptation of the Moondog theme was to call himself Wolfman Jack and add his own sound effects. The character was based in part on the manner and style of bluesman Howlin' Wolf. It was at KCIJ that he first began to develop his famous alter ego Wolfman Jack. According to author Philip A. Lieberman, Smith's "Wolfman" persona "derived from Smith's love of horror films and his shenanigans as a 'wolfman' with his two young nephews. The 'Jack' was added as a part of the 'hipster' lingo of the 1950s, as in 'Take a page from my book, Jack,' or the more popular, 'Hit the road, Jack.'"