What’s the provenance of prized super-fatty beef in New York restaurants? Probably not Japan.

So 57th Street isn't exactly lower Manhattan, but it's downtown if you're Jimmy Rodriguez, the nightlife impresario who brought the A-list to the Bronx. Now he's luring his blend of celebrities, politicians, and athletes to the sleepy neighborhood near the U.N. Could Kofi Annan be next at the bar?