Jan Hammer (born April 17, 1948) is an Czech musician, keyboardist, and songwriter, who appeared in the show Miami Vice as an unnamed wedding musician in the episodes "One Way Ticket" and "Like a Hurricane". He also composed the famous "Miami Vice Theme" that featured in all 111 episodes of the series, as well as the rest of the show's background music for Season 1 through to Season 4 (although he was joined by John Petersen from Season 4's "Missing Hours" through to "A Bullet for Crockett").