Prince Harry finally touched down on U.S. soil today, making the first stop of his eight-day U.S. tour on Capitol Hill, touring a landmine clearance exhibit set up by the HALO Trust alongside Sen. John McCain.

The problem of unexploded landmines was a cause championed by his late mother, Princess Diana. Images of her walking through a minefield drew a lot of attention to the trust.

You didn't have to look too far to see ladies waiting to welcome Harry, armed with his rock-star power. You could hear a few loud screams and cheers as the prince was being briefed by Guy Willoughby, the HALO Trust's CEO.

READ: Prince Harry Arrives in Washington

Later, McCain, R-Ariz., described the prince as a "very nice young man, very pleasant, he seemed to be very interested in HALO, not asking surface questions, [asking] in-depth questions with knowledge. … Frankly, I found him to be a very attractive young man. … I was very impressed."

Harry was then whisked off to the White House where first lady Michelle Obama and Jill Biden, wife of the vice president, were hosting an event honoring military mothers and their families.

Harry did what he does best. On bended knee, he mucked in with the kids, helping them out with their arts and crafts.

Tonight, the Prince is attending a reception at the British ambassador's residence and will be giving a speech.

Harry is on official business in the U.S., acting as an ambassador for his grandmother, the Queen, and his country, representing a number of charities and focusing on the sacrifice of the armed forces.