March 7, 2020

Prince Harry, Duchess Meghan dazzle in red at concert, one of their last engagements as senior royals

WATCH: Meghan and Harry set to appear at final official event before split from royal duties

Prince Harry and Duchess Meghan attended a concert Saturday night as they wrap up their roles as working members of Britain's royal family.

Harry and Meghan, the Duke and Duchess of Sussex, appeared happy and confident as they greeted other guests and members of the Marines at the Mountbatten Music Festival at Royal Albert Hall in London.

The duchess dazzled in a red dress, designed by Safiyaa, alongside her husband, who was also in red military dress.

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The Duke and Duchess of Sussex arrive at the Royal Albert Hall in London to attend the Mountbatten Festival of Music, March 7, 2020.

The annual performance features the music of Queen Elizabeth's Royal Marines, of which Harry is Captain General, a military title he will keep over the next year as he and Meghan exit their royal roles, although he will not carry out any official duties.

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Meghan, the Duchess of Sussex, arrives with Prince Harry at the Royal Albert Hall in London, March 7, 2020, to attend the Mountbatten Festival of Music.

The Sussexes will step down from their senior royal roles on March 31 and their office at Buckingham Palace will close on April 1.

MORE: Prince Harry, Meghan to close Buckingham Palace office as they finalize split with royal family

As non-working members of the royal family, Harry and Meghan will retain but no longer use their HRH titles, will no longer represent the queen, will not receive public funds for royal duties and will spend the "majority of their time" in North America.

The Sussexes, who are living in Canada with their son Archie, are currently in the U.K. finishing out their last royal engagements.

The couple made their first joint appearance in London since January on Thursday night at the Endeavour Fund Awards, which recognizes the achievements of wounded veterans and soldiers.

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Meghan, Duchess of Sussex and Britain's Prince Harry arrive at the Endeavour Fund Awards in London, March 5, 2020.

After tonight's event, Harry and Meghan have just one more appearance scheduled in the U.K.

MORE: Queen Elizabeth tells Prince Harry he'd be welcomed back as a working royal

They will join Queen Elizabeth, Prince Charles, Camilla, Prince William and Kate at a Commonwealth Day service on Monday in what could be their last official royal engagement.