Kylie Minogue has added an extra date to her tour after cutting short a concert last Saturday. Fans of the 'Spinning Around' singer - who halted her performance in Manchester's MEN Arena because of flu - can now use their tickets to attend another show next Tuesday. Kylie said: "I would like to apologise to those who attended last Saturday night's show. I was hoping to feel better as the day went on but,unfortunately, the opposite was true. I'm sorry for all those who were inconvenienced by the postponements."The diminutive singer's actions last Saturday sparked concern among her family and friends who believe she is trying to do too much too soon after winning her battle with breast cancer last year. A source said: "It's awoken some of our worst fears again. There are definite concerns she has taken on too much and can't cope with this pace."Everyone gets flu from time to time. But during the initial months after beating cancer, it's vital to keep well."The Manchester concert was her 29th show of a gruelling 33-date tour of theUK and Australia.