Should be shortly after 5:00 pm MDT - the Kickoff pre-game concert is already underway:
http://www.nfl.com/kickoff
The NFL ushers in its 89th season with a special, free pregame event, "NFL Opening Kickoff 2008 Presented by EA Sports." Usher, Keith Urban and Natasha Bedingfield will perform at the Kickoff concert event from New York City's Columbus Circle on Thursday, Sept. 4.
The event begins at 3 p.m. ET with a public screening of the New York Giants edition of "America's Game," with musical performances starting at approximately 4 p.m. and running until 6:45 p.m. Admission is free, tickets are not required, and all are welcome.