JAY Z & BEYONCE SET TO BREAK UP & KILL THE BRAND?

They are one of the most famous couples on earth, yet intensely private — rarely allowing a glimpse of anything but the picture of a marriage and partnership that is constantly, blissfully happy. But a source who has been close to Beyoncé and Jay Z for years tells The Post that all is not well — and hasn’t been for quite some time. This is the first peek behind the firewall that is Beyoncé and Jay Z Inc. — what drew them together, why they’re headed for a split and why love was never the thing that held them together. (click the pic to read more)