Video by Joseph Andrew Lee

CHARLOTTE, N.C.–NASCAR drivers are the latest celebrities to sign The USO’s Every Moment Counts Flag.

The USO is in Charlotte this weekend with Presidents Circle partner Coca-Cola for Sunday's Coke 600. Press play to see what happened when drivers like Dale Earnhardt Jr., Casey Mears, David Ragan, Josh Wise and others autographed the flag.

And don’t forget to thank America’s troops and help the USO break a Guinness World Record by adding your name.