Eurovision: Meet the 'invisible' backstage team who make the song contest tick

Mark SavageMusic CorrespondentGetty ImagesIcelandic boyband VÆB were the first act to perform on the Eurovision stage this yearThirty-five seconds. That's all the time you get to change the set at Eurovision.Thirty-five seconds to get one set of performers off the stage and put the next ones in the right place. Thirty-five seconds to make sure everyone has the right microphones and earpieces. Thirty-five seconds…