The Princess of Wales, Kate Middleton, made an unexpected appearance on day four of Wimbledon, opting to watch matches on the outer courts rather than the traditional Royal Box. She was seen interacting with fans and handing out grounds passes.

Meanwhile, singer Ellie Goulding, 39, attended the event with her boyfriend Beau Minniear, 29, occupying a seat in the celebrity-filled Royal Box. Goulding's appearance comes as she prepares for the release of her new album, 'I Know Too Much,' in September. The album is described as her most honest to date, touching on her divorce from ex-husband Caspar and her experiences as a new mother.

Also present at Wimbledon were Joe Jonas, who attended with his mother Denise, and Cliff Richard, who sported a red velour suit. Other notable attendees included Stanley Tucci and Chris Rock.

Goulding, who welcomed her daughter Iris in March, has spoken about feeling more prepared for her music comeback compared to her previous album release after her first child. She noted that her new music reflects personal growth and rediscovery, rather than solely focusing on her divorce.

The Princess of Wales wore a blue linen suit and Ralph Lauren sunglasses for her visit. She broke with tradition by not sitting in the Royal Box, instead joining former British number one Tim Henman on an outside court. She was seen chatting with fans who had queued overnight for tickets and assisted in distributing grounds passes.