Prince William surprised royals fans as they paid tribute to his mother Princess Diana on what would have been her 58th birthday Monday.

According to the Daily Mail, the Duke of Cambridge made an appearance outside Kensington Palace around 6:45 p.m. to see a small group of fans who had been waiting since 5:30 a.m.

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The father of three, who lives in Apartment 1A inside the Palace, chatted to the fans about the statue Ian Rank-Broadley is currently sculpting to mark the 20-year anniversary of Diana’s death.

William, who was joined by a small group of security, reportedly said when asked about the grand unveiling, “Soon, very soon. We just want to make sure it is right. It’s important to get it right.”

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Fan John Loughrey said: “William told me he knew we’d been coming here for years and thanked us for what we were doing for his mother.

“He shook my hand three times, he has a really firm shake, and I felt a beautiful feeling go through my body. I think I’m still shaking now. I feel very emotional.”

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