Never forgotten. Forever grateful." To help honor the victims and heroes of Sept. 11, director Spike Lee filmed a unique and moving tribute to the New York Fire Department.
Lee, working with State Farm, filmed roughly 150 children from New York serenading members of the FDNY to the tune of Jay-Z and Alicia Keys's smash hit "Empire State of Mind."

The tribute may remind some of  Staten Island's PS 22 choir's version of "Somewhere Over the Rainbow" at the most recent Academy Awards.

This version of "Empire State of Mind" was conducted by James Davis Jr. The spot first appeared online several days ago.  It then aired during Sunday's Eagles-Rams NFL game. Now it is quickly going viral. Web searches for "empire state of mind lyrics" and "empire state of mind song" are starting to soar.

Concrete jungle where dreams are made of,
There's nothing you can't do,
Now you're in New York!
These streets will make you feel brand new,
The lights will inspire you,
Let's hear it for New York, New York, New York.

Proceeds for the song, which you can buy on iTunes, go toward the National Fallen Firefighters Foundation.