Cody Simpson -- Prefers Men Bouncing Balls ... Over Willing Supermodel

Cody Simpson is a robot ... or he's the biggest friggin' Knicks fan in the world, because not even a stone cold 10 like Gigi Hadid could break his steely gaze from the game.

Cody lived every dude's dream Wednesday night at Madison Square Garden ... courtside seats and a supermodel pawing at you like you're her first meal in weeks. Yet, all the Aussie singer cared about was watching the hapless Knicks lose to the Nets.