Third and final episode of the BBC4 series. In the years bookended by Buddy Holly's death in early 1959 and the Beatles landing at JFK in spring 1964, rock 'n' roll calmed down, went uptown and got spun into teen pop in a number of America's biggest cities. Philadelphia produced 'teen idols' like Fabian who were beamed around the country by the daily TV show Bandstand. Young Jewish songwriters in New York's Brill Building drove girl groups on the east coast who gave a female voice to teenage romance. Rock 'n' roll even fuelled the Motown sound in Detroit and soundtracked the sunshiny west coast dream from guitar instrumental groups like the Ventures to LA's emerging Beach Boys. In the early 60s rock 'n' roll was birthing increasingly polished pop sounds across the States, but American teens seemed to have settled back into sensible young adulthood. Enter the long-haired boys from Liverpool, Newcastle and London.