Justin Bieber needs to take a good hard look at how Peppa Pig does it: because when you're doing shows for children, you have to keep on time.
His UK dates have been running late - by as much as an hour at the Millennium Dome in Greenwich - with the result that mummies and daddies have turned up to pick up their kids, only to discover that the show hasn't yet finished:
"A few of the parents went up to the information desk to complain and they were saying there's nothing they could do and that 'It's just Justin Bieber's production team'.The blame is being put on the support acts over-running, although if people were able to boo for a solid hour before Bieber eventually came on, that seems a bit of a stretch.
"We said that was all well and good, but most of us have to get trains... it was just a shambles. I said we've really got to leave at ten to eleven to get the last train."
She added that people in the crowd began booing at about 21:30, almost an hour before Bieber's act eventually started.