MARINE CORPS BASE HAWAII — Country singer and songwriter Toby Keith performs for service members and their families at Dewey Square, May 5. May 5th's performance was his 200th military concert.(Official U.S. Marine Corps photo by Lance Cpl. Nathan Knapke) - MARINE CORPS BASE HAWAII — Country singer and songwriter Toby Keith performs for service members and their families at Dewey Square, May 5. May 5th's performance was his 200th military concert.(Official U.S. Marine Corps photo by Lance Cpl. Nathan Knapke)