Queen visists Berkhamsted School
Queen Elizabeth II arrives at Berkhamsted School for the school's 475th anniversary celebrations Eamonn M. McCormack/ Getty Images

If you thought that The Queen's 90th birthday celebrations were over, then you were sorely mistaken. Get your Victoria sponge cake and pots of tea at the ready as a bevy of high profile stars will perform at the equestrian spectacular in Windsor Castle, set to air this Sunday 15 May on ITV as the regal revelries continue.

Big names are set to perform for Her Majesty, including the likes of Dame Shirley Bassey and Gary Barlow, OBE. The one-off show will be hosted by the nation's favourite duo, Ant and Dec, whilst Italian tenor Andrea Bocelli, actor and British tenor Alfie Boe and singer songwriter James Blunt will add some refined musical artistry to the mix.

Other celebrities aiming to impress Her Majesty with their talents include Brit Award nominee Jess Glynne, mezzo-soprano Katherine Jenkins OBE, Kylie Minogue OBE and Academy Award winning actress Dame Helen Mirren, who played the royal in a film biopic about her life during the Blair era.

Discussing their involvement in the special event, hosts Ant and Dec said: "We are honoured to be hosting this special celebration of Her Majesty the Queen's 90th Birthday. This spectacular evening will bring together some of the best known names in the entertainment world who will perform with 900 horses and 1500 participants to mark this very special birthday."

Katherine Jenkins
Katherine Jenkins will perform for The Queen's 90th Birthday CelebrationsReuters

Welsh opera singer Jenkins also seemed more than keen on participating in the show, claiming: "I couldn't be more excited or more honoured to be part of Her Majesty The Queen's 90th Birthday Celebrations at Windsor Castle. Reaching 90 is a huge reason to celebrate, but 90 years of our monarch is absolutely remarkable!"

The celebrations will see more than 900 horses and 1500 participants will help tell the story of The Queen's life from her birth in 1926, to her Coronation at the age of 25 in 1953 and her reign spanning more than six decades.

Lucky guests will also be treated to performances in the arena from acts such as The King's Troop Royal Horse Artillery, The Household Cavalry Mounted Regiment and the Royal Cavalry of the Sultanate of Oman.

The Queen's 90th Birthday Celebration will air on 15th May at 8.35pm on ITV.