Prince Harry is set to appear as a surprise guest at a top-secret charity event today, reports claim.
The Duke of Sussex is isolating at Frogmore Cottage in Windsor, where he previously lived with wife Meghan Markle, as he prepares for the Princess Diana statue unveiling.
Harry is set to join his brother Prince William to view the statue erected in the palace's gardens to mark what would have been their late mother's 60th birthday.
But first he plans to attend a mystery charity bash, with organisers managing to keep a tight lid on any details.
Harry, 36, reportedly flew into the UK early so he had enough time to quarantine before Wednesday's hush-hush event.
An insider told The Sun : “Organisers have moved heaven and Earth to make this happen. It’s been carefully choreographed.

“It’s an incredibly important day for him and the organisers want to make it as successful as possible.”
It is not yet publicly known where or when Harry will attend the event for the charity.
While he and Meghan were stripped of their royal patronages after severing ties with palace life last year, they have maintained links to a series of charities on behalf of their Archewell foundation.
Harry flew in alone to attend the event, which will be followed by the statue unveiling on Thursday, July 1.
The Duke of Sussex and the Duke of Cambridge will come together for the first time since their grandfather Prince Philip's funeral.
The pair have endured an rift since Harry split from royal life to live across the pond with Meghan and baby Archie.

Meghan now remains at home with the couple's newborn daughter, Lilibet Diana Mountbatten-Windsor, who was named in a tribute to both her late grandmother, and Philip's pet name for the Queen.
The Duchess of Sussex didn’t travel for the Duke of Edinburgh's funeral either as she was pregnant at the time and has since remained at the couple's Santa Barbara home with Lilibet, who is less than a month old.
The statue unveiling in Kensington Palace's Sunken Garden marks the exact date Diana would have turned 60.
Harry has used a series of interviews and public outings this year to address his grief over his mother's death, as part of his ongoing mental health advocacy work.
Meanwhile, William was spotted with the Duchess of Cambridge and son Prince George at Wembley Stadium on Tuesday night.
George, now aged seven, wore a suit and tie to match his dad's and beamed with delight as England beat Germany to secure a spot on the side's hopeful path to Euro 2020 victory.