For those of you not cognizant of the cutting edge urban scene, that song is Empire State of Mind by Jay Z. As I've always said, you strip the rappin' out of it and that Jay Z music can be kind of entertaining.
Turns out that commercial was directed by Spike Lee. Say what you will about his politics, the guy is a talented director and always makes interesting movies.
Here's a short behind-the-scenes "making of" video for the commercial. It's compelling stuff, especially with the kids talking about what's great about New York, and what they mention are the chances for opportunity and importance of individual effort. Then the part where the fireman is rapid-fire putting names to the faces on the pictures of the 9/11 deceased from his firehouse, as the lilting melody plays underneath, is very effective.