Princess Beatrice and Princess Eugenie enjoyed their night out On Friday when they attended the British Summer Time Hyde Park concert. Pictures of the royal sisters dancing along to Celine Dion during the famous event went viral.

The princesses are accompanied by Princess Beatrice's boyfriend, Edoardo Mapelli Mozzi. Princess Eugenie's husband, Jack Brooksbank, is not present during the event.

The two looked stunning during the party. Beatrice is wearing a printed dress by Alexander McQueen paired with white trainers while Eugenie is wearing a printed mini dress and statement sunglasses.

Other celebrities attended the event including Myleene Klass and Caroline Flack, the Love Island presenter. Beatrice and Edoardo were seen at a high-end hotel and restaurant, Chiltern Firehouse.

The two princesses are known for their closeness. Beatrice said on an interview with The Telegraph that they get on fantastically well. She opened up that just like other siblings, they had silly arguments about less important things, but they love each other to death.

Princess Eugenie regularly posts childhood photos with her sister on her Instagram account. The Princess praised Beatrice during a youth empowerment event WE Day UK in March last year. She said that as her big sister, Beatrice inspires her, she said that they both work hard to support each other no matter what.

The sisters love to spend their time together to enjoy. They were seen on the first day of the races at Royal Ascot, accompanied by Edoardo.

They were pictured enjoying their meal in Notting Hill at the Gold Restaurant. Beatrice and Edoardo were pictured holding each other's hand as they walk to the venue.

The couple started dating last year, and they've been inseparable ever since. The two were seen together at the National Portrait Gallery annual gala in March last year. Her sister and her parents approve Their relationship.

The Princess boyfriend was seen during family gatherings with Prince Andrew and Sarah Ferguson. He recently attended the wedding of Lady Gabriela Windsor in May.

According to the Sun, a source close to the royal family said that the two have been on holiday together and the Princess introduced her boyfriend to Fergie and her dad. The source also said that things are moving quickly and everyone should expect an engagement within a short period. Others are even waiting for the sound of wedding bells shortly.