Genuine royalty met pop aristocracy at the Royal Variety Performance tonight, as Prince Charles shook hands with Lady Gaga.The singer also met the Duchess of Cornwall, who said: “My grandchildren call me Gaga”. Speaking during rehearsals for the big night, which is broadcast on ITV next Tuesday, Lance Corporal Jones said: “It’s a really exciting performance, telling a really poignant story which is really important to my family in particular, but it should also touch the hearts of many people watching around the country.”It’s a big, heart-warming moment for the forces – but I don’t want to spill the beans too much.” Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. Fellow star Perri Kiely added: “Good old Jordan, we’ve missed him. Even I’ve never been away from him for this long.”He’s done so well out there with the trials and conquering his fears, we’re really proud of him.”The group won Britain’s Got Talent in 2009. Emeli Sande took to the stage at the Royal VarietyCredit:Matt Frost /ITV / Rex / Shutterstock Diversity’s Jordan Banjo appeared on I’m A Celebrity … Get Me Out Of Here!Credit:ITV / Rex / Shutterstock The Prince meets David WalliamsCredit:NIKLAS HALLE’N/AFP / Getty Actress Sheridan Smith was supposed to be appearing at the performance, but had to pull out after her father died. Among the event’s performers are dance group Diversity, although one of their members, Jordan Banjo, was not able to join as he is on his way home from Australia, where he was been participating in I’m a Celebrity … Get Me Out of Here.Speaking during rehearsals for the Royal Variety, his older brother Ashley Banjo, 28, joked that he would meet Jordan at the airport with a snake, in a reference to his struggles with his phobia of the animals on the ITV programme. The Duchess donned a full-length red gown for the occasion, while her husband was dressed in a sharp black tuxedo.The royal couple also met Robbie Williams and charity bosses at the star-studded event at the Hammersmith Apollo.The Duchess was given flowers by the young granddaughter of Bill Kenwright, producer of the performance, before the royal couple took their seats. Credit:Max Mumby The Duchess of Cornwall met Robbie Williams and Lady GagaCredit:NIKLAS HALLE’N/AFP / Getty The soldier, from Essex, blew the nation away with his magical illusions on the TV talent contest earlier this year, earning himself the opportunity to perform in front of a royal audience.L/Cpl Jones, 26, added: “I feel very privileged and honoured to be here, performing for the Royal Family as well, and then in front of the nation.”He said he remains passionate about his main job as a military musician, a role in which he performed in front of the Queen at her 90th birthday celebrations this year. Credit:NIKLAS HALLE’N/AFP / Getty The show, which will be broadcast next week, is being hosted by comedian David Walliams.Walliams led a group of people to the royal box, asking Charles and Camilla “can I see your tickets please?”, before joking to the group: “There’s some riff-raff here sitting in your seats.”Gaga and Williams are among the performers at the show, alongside Sting and Emeli Sande, while magician and Britain’s Got Talent winner Richard Jones also takes to the stage.