RTS award winners Ant and Dec are to present a live event on ITV to celebrate the life of the Queen.
The event will pay tribute to Elizabeth's life and her over 60-year reign which has made her the longest-reigning monarch in British history.
The celebration, in the grounds of Windsor Castle, will also be attended by the Queen herself.
Performers in the arena will include The Oman Royal Cavalry, traditional Chilean horsemen and The New Zealand Army Band.
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.”
Later this year ITV will also show a two-hour long film to celebrate and reflect on the Queen's life. Contributors will include The Prince of Wales, The Duchess of Cornwall and The Duke and Duchess of Cambridge.
In January, Ant and Dec appeared on the same channel chatting to Prince Charles about the 40th anniversary of the Prince's Trust.
The Queen’s 90th Birthday has been commissioned by ITV’s Director of Entertainment and Comedy Elaine Bedell and the Entertainment Commissioning Editor Peter Davey.