Buckingham Palace was illuminated in glittering glamour on Monday evening as the Queen and senior members of the royal family welcomed US President Donald Trump for a state banquet as part of his three-day visit to the UK.
In typical style, Kate Middleton stole the show in a tiered ivory dress by her favourite designer Alexander McQueen and her trademark Lover's Knot tiara which once belonged to her late mother-in-law, Princess Diana.
WATCH this video to see what went on inside the Palace!
The Duchess of Cambridge paid tribute to her royal in-laws by accessorising with the Queen Mother's diamond and sapphire drop earrings.
Kate, 37, wore the sash of the Royal Victorian Order over her shoulder, the first time she has worn the honour after it was gifted to her by the Queen for her and Prince William's eighth wedding anniversary in April, People Magazine reports.
It was a night of white with Her Majesty the Queen, First Lady Melania Tump and Camilla, Duchess of Cornwall all opting for floor length ivory gowns.
Queen Elizabeth wore her ancestor Queen Victoria's Crown Ruby earrings and marching necklace, as well as a stunning diamond tiara encrusted with large rubies.
The monarch designed the jaw dropping jewellery herself with 96 rubies which were gifted to her from the people of Burma in 1973, according to Express.co.uk.
Also in attendance were Prince Andrew, Anne, Princess Royal, Prince Edward and his wife Sophie, Countess of Wessex as well as British Prime Minister Theresa May and Mr Trump's four adult children, Ivanka, Tiffany, Eric and Donald Jr.