Sony/ATV boss Marty Bandier knows how to pick ‘em when it comes to March Madness.

Bandier got some hoop advice for his bracket picks from his grandson, Cameron, who is a freshman at Yale.

Cameron correctly suggested Villanova Wildcats, which took the crown in the NCAA tournament last week.

Bandier then scooped up $600 from his colleagues in the office pool, but rather than leaving staff disgruntled, Bandier tells us that he splurged on a $1,500 pizza and beer party to celebrate the win.

We’re hearing Bandier, who has a fresh contract from the Sony overlords, has been a bit lost for grown-up lunch spots since the corporate shift from 550 Madison Avenue to Sony’s new Flatiron digs at 25 Madison Avenue.

“It’s just not like going to Michaels or 21 or Core Club,” says Bandier. New York’s Silicon Alley is just too full of plaid-clad hipsters, he observes.