JUST as Simon Cowell wears Cuban heels and Tom Cruise stands on boxes to kiss his co-stars, so Justin Bieber has his own tricks of the trade to add height.

Yep, the 5ft 5in boy-child plays basketball with a specially adapted hoop.

While standard backboards measure in at 10ft from ground to hoop, the Canadian singer was merrily dunking away on a teeny six footer during a game with pals in LA.