UK: Two future kings set to honour Queen Elizabeth at jubilee concert

LONDON (AP) — Two future monarchs are set to pay tribute to Queen Elizabeth II at a special concert in front of Buckingham Palace on Saturday, the third day of the Platinum Jubilee extravaganza marking her 70 years on the throne.

Prince Charles and Prince William, the queen’s son and grandson, are scheduled to address a live audience of 22,000 people and millions more watching on television. The event featuring Diana Ross, Queen + Adam Lambert and Alicia Keys will take place in a temporary amphitheater built around the Victoria Memorial outside the palace.

The 96-year-old monarch isn’t expected to attend the nighttime outdoor event with rain in the forecast. Problems moving around, which the palace describes as “episodic mobility issues,” have limited the queen’s public appearances in recent months.

The sovereign opted not to attend the Epsom Derby on Saturday, the second time in as many days that her troubles in getting around have robbed crowds of a chance to see her. On Friday, the queen skipped a special service of Thanksgiving in her honour at St. Paul’s Cathedral in London.

Prince Harry and his wife, Meghan, were among nearly 50 members of the royal family who gathered to honour the absent head of state. It was their first public appearance in the U.K. since stepping back from royal duties two years ago.

In another sign of thawing relations, royal accounts on Twitter wished Harry and Meghan’s daughter Lilibet, a happy first birthday. Lilibet turned one on Saturday. She and her older brother, Archie, haven’t yet made an appearance during this trip.

“Wishing Lilibet a very Happy 1st Birthday!″ the Royal Family account tweeted.

Meanwhile, other members of the royal family travelled to Wales and Northern Ireland as part of celebrations across the U.K.

William and his wife Kate brought two of their three children — 8-year-old Prince George and 7-year-old Princess Charlotte — to Cardiff Castle in Wales before a separate concert in the castle grounds in honour of the queen.

The queen’s youngest son, Prince Edward, and his wife Sophie, Countess of Wessex, visited Northern Ireland for 1950s-themed festivities.