Prince William & Kate: Diamond Jubilee Concert!

Catherine, Duchess of Cambridge, Prince William, and Prince Harry check out the Diamond Jubilee Concert on Monday (June 4) at Buckingham Palace in London, England.

The trio, along with Princess Beatrice, attended the event, which featured Paul McCartney, Elton John, and Stevie Wonder as just a few of the entertainers who hit the stage!

“Welcome to the noisiest party the queen has ever seen. She won’t like this at all. It’s the equivalent of a well-meaning parent handing over their home to a 16-year-old on a Saturday night and it ending up Facebook,” host Rob Brydon joked.

The Queen‘s husband, Prince Philip, missed the Jubilee concert after he was hospitalized with a bladder infection. Palace officials said the royal, who turns 91 on Saturday, will remain under observation for a few days.