Gary Lionelli is a composer, singer, and music producer. He composed the theme songs to the Hanna-Barbera shows The Tom and Jerry Kids Show (starring Frank Welker, Don Messick, and Charlie Adler) and Dexter’s Laboratory (starring Jeff Bennett and Kath Soucie), The Real Adventures of Jonny Quest (starring Quinton Flynn, Rob Paulsen, and Jennifer Hale), as well as the documentary O.J.: Made in America.