Seven-time Tour de France champion Lance Armstrong is also visiting the troops.
"It's really nice to see there is a lot of people, famous people that care about the troops, come out and give us a show and boost the morale while we're here. I truly appreciate it," said U.S. Army Sgt. Chad Opmiller.
"It's an absolutely wonderful opportunity to come out here and celebrate the holiday season with people that appreciate our service to the country. It's absolutely wonderful," said U.S. Army Master Sgt. Laune Blundel.