"I've got a song for those people hiding in the caves," Jay-Z laughed before launching into "99 Problems." A solemn 9/11 benefit this was not. But perhaps it's time to let ourselves celebrate, and at his Answer The Call benefit at Madison Square Garden last night, Jay-Z was all about celebration. He struck the perfect balance between giving respect for all those who gave their lives at Ground Zero, and honoring a city that couldn't be torn down. more ›