Although famous, we still have to remember he’s still a child. Pop singer Justin Bieber has apologized after he was misbehaving on a flight in Sydney, Australia. Sources say the flight was headed to Melbourne, the next stop on his tour, but the plane could not taxi down the runway because Justin refused to sit down, ignoring repeated request from the cabin crew. Finally an airline stewardess turned mama style real quick on Justin and he sat down before apologizing for his actions. A man who was also on the flight confirmed on Twitter that he was sitting behind Justin and that he was acting naughty and the flight attendant was not out of order.