How cool is Billy Joel?! Yesterday he and New York Gov. Andrew Cuomo led a motorcycle ride to Ground Zero in honor of the 9/11 first responders.  Their route followed the same one taken by firefighters and rescue on that fateful day. They started from the Rescue 1 firehouse on West 43rd St. and rode down to the World Trade Center site. Cuomo called Billy "the quintessential New York citizen who never forgot where he came from." Relive his performance of “New York State of Mind” at the America: A Tribute To Heroes telethon on Sept 21st, 2001.