The event in California was held at Kevin Costner's house, who recently told a story about Harry's late mother, Princess Diana.

Prince Harrywas caught in an awkward social media blunder after television presenterDaisy Fuentesaccidentally tagged his brother, Prince William, in an Instagram post with her husband, Richard Marx. The Duke of Sussex attended the One805LIVE!

Damon, 53, stepped out in New York City on Monday, Sept. 23 to speak at the Clinton Global Initiative (CGI) Annual Meeting, where Prince Harry hit the stage the following day. The actor also appeared at Prince William's Earthshot Prize Innovation Summit on Tuesday, Sept. 24.

LOS ANGELES, CALIFORNIA: Prince Harry found himself in an amusing mix-up during a charity event in California on September 20, where he was mistakenly identified as his older brother, Prince William.

The royal brothers have had their warm moments over the years despite their current rift and fans shared some clips.

A 12-year-old girl who helps her mother care for her brother will get to meet Prince Harry when she is given a special award. Anya was nominated by her mother Gemma in the Inspirational Sibling category of the WellChild Awards.

Celebrities are just like Us — even they can get the British royal family members confused. Prince Harry was one of many celebrity attendees at the One805Live! fundraising concert supporting Santa Barbara,