Prince Harry sings 'Happy Birthday' to Missy Franklin 

Ed Andrieski / POOL / Today
Prince Harry talks with Olympic gold medalist Missy Franklin

Prince Harry's visit to Colorado has been focused on meeting with wounded servicemen and women, but he took some time out to sing a special song to Olympian Missy Franklin.

The swimmer was celebrating her 18th birthday at a golf club south of Denver, Colo., on Friday, while Harry was on charm duty, mixing and mingling with dignitaries, military officers and others at a cocktail party. When a crowd gathered to sing to Franklin, Harry joined right in.

Harry, a veteran combat helicopter pilot, attended the paralympic-style Warrior Games at the Olympic training center in Colorado Springs Saturday.

Franklin also joined in on the festivities during the Warrior Games, completing the last leg of a torch relay with Harry and a U.S. Navy officer. The three lifted the torch together at the end of the relay, igniting the flame of the Olympic-style cauldron to signify the start of the games.

The veterans in attendance said Harry was down-to-earth, and that they valued his military background.

"He knows what it's like out there," said British Army Capt. Dave Henson, 28, a volleyball player who lost both his legs in Afghanistan after an improvised bomb exploded. "He's been on the ground and in the air."

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Prince Harry attends Warrior Games

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A statement from St. James' Palace, the official residence of the royal family, said Harry is spending time at the Warrior Games because he believes the wounded deserve recognition.

"He has said before how humbled he feels by the extraordinary courage and fortitude shown by those servicemen and women who have made huge sacrifices for their country, and to whom we all owe a considerable debt of gratitude," the statement said.

Harry is on a week-long American tour, and it isn't only Olympians who are getting the royal treatment. He also spent some time with first lady Michelle Obama, who surprised attendees at a Mother's Day tea at the White House on Thursday with Prince Harry as her guest.

He also took some time to visit Arlington National Cemetery, where he laid a wreath and a handwritten note on the grave of a soldier in Section 60, the burial ground for soldiers killed in Iraq and Afghanistan.

"To my comrades-in-arms of the United States of America, who have paid the ultimate sacrifice in the cause of freedom,” read the note, which was signed, “Captain Harry Wales."

Harry is expected to continue his American tour into next week, when he will head back to the East Coast to survey residential areas still devastated from Superstorm Sandy with New Jersey Gov. Chris Christie.

The Associated Press contributed reporting.