It's heaven on earth...or at least at the Winter Garden Theatre! Harry Waters Jr., who played Chuck Berry’s cousin, Marvin Berry, in the Back to the Future film, joined Jelani Remy, who plays the role in the musical, and the rest of the Broadway cast for a one-night-only encore of “Earth Angel.” Check out the performance in the video above, then get your tickets to see Back to the Future: The Musical by visiting the show page below.