In the beginning were the Teds. Now the torch of 50s rock 'n' roll is kept burning by the Hep Cats, teenagers who dress as 50s-style Americans, obsessed by the rockabilly strand of the music. At Great Yarmouth 1,500 of them (many from Europe) gathered for a weekend of rock 'n' roll and bopping to groups like CRAZY CAVAN and, top of the bill, GENE VINCENT'S BLUE CAPS, reunited for the first time In 25 years. Richard Gilbert finds out how and why the Hep Cats keep on rocking.