The Canadian singer, 16, refused to get into his mum's car after flunking the exam - preferring to walk home in the rain and sulk on his own.
Super-confident Justin had expected to breeze through the test and earn a driver's permit.
That would have allowed him to get behind the wheel of his 16th birthday present - a Range Rover given to him by his mentor, RnB star USHER.
But the teenager,