Fab Morvan was one half of iconic pop duo Milli Vanilli, alongside Rob Pilatus, who had Number Ones around the world in the late 1980s. But it all came crashing down when producer Frank Farian revealed that Fab and Rob mimed the songs. In a rare full-length interview, Fab tells Anna Foster how it all came about, how he reacted at the height of the scandal – and how he’s rebuilt his career.