David Rosenthal (born January 1, 1961) is an American keyboardist, musical director, music producer, synthesizer programmer, orchestrator, and songwriter, mostly known for working with the world-renowned hard rock band Rainbow and rock legend Billy Joel. Rosenthal has been nominated for three Grammy Awards, and in addition to Rainbow and Joel, has worked with Bruce Springsteen, Enrique Iglesias, Robert Palmer, Steve Vai, Cyndi Lauper, Yngwie Malmsteen, Little Steven, Happy the Man, and many others. Additionally, Rosenthal has "perfect pitch".