Adele in a box, U2 stuck in a lemon ... pop’s bizarre stage entrances

The Hello singer’s way of getting on stage may be undignified – but pop history is littered with artists who have come unstuck between dressing room and auditoriumThe life of a multimillion-selling pop star is nothing if not glamorous. There’s the first-class globe-trotting, the magnums of champagne provided purely for bathing purposes and – if you have really made it big – the time spent crammed like a sardine into a flight case.At least that seems to be the, er, c