Even our own fans don't recognise us From CAROLINE IGGULDENIn Barcelona  THEIR street credibility is right up there with, er, SIR CLIFF RICHARD’s. But that hasn’t stopped 損opera?boyband Il Divo becoming one of the world’s biggest-selling groups. Over the past four years they have shifted an astonishing 22MILLION records — more than ARCTIC MONKEYS or GIRLS ALOUD. They have even managed to break America — which ROBBIE WILLIAMS and OASIS could not do. Il Divo’s last three albums went to No1 in 26 countries and the group — put together by pop svengali SIMON COWELL — have already completed two sell-out world tours. Latest album The Promise was No1 in the UK midweek charts, which means it will be at the top on Sunday. But despite the their huge commercial successes, most of us would probably struggle to name a member of the awesome foursome. 揈ven our own fans don’t recognise us!?says French Divo SEBASTIEN IZAMBARD, 35, with a laugh. 揑 live in London an...