Jan Hammer (Czech pronunciation: [ˈjan ˈɦamɛr]) (born 17 April 1948, in Prague, then Czechoslovakia, today the Czech Republic) is a composer, pianist and keyboardist. He first gained his most visible audience while playing keyboards with the Mahavishnu Orchestra in the early 1970s, as well as his film scores for television and film including "Miami Vice Theme" and "Crockett's Theme", from the popular 1980s program, Miami Vice.