BRITNEY COLLAPSES

Britney Spears’ bust-up with boyfriend Justin Timberlake has led to serious health problems that caused her to collapse after a recent concert.

Heartbroken Britney turned to food for comfort, packed on 16 pounds, then went on a crash diet — and blacked out following an East Coast performance.

The issue that goes on sale Friday details the pop star’s collapse, her binge eating and dieting … and more.