She had left the USA in a Gucci city print dress with London landmarks printed on it in orange and green hues.
To give Melania credit, her choice to wear Burberry, a British designer, to the United Kingdom was no doubt a carefully-considered style move.
The First Lady was dressed in an all-white dress and matching hat that was very reminiscent of the one and only Lady Di.
Britain rolled out the royal red carpet for U.S. President Donald Trump and his wife on Monday laying on pomp and pageantry ahead of a formal banquet with Queen Elizabeth at Buckingham Palace.
Earlier on June 4, the president and the first lady went to No. 10 Downing Street to meet the UK Prime Minister Theresa May and her husband Philip May, where they had an expanded bilateral meeting between Trump's team and May's team before and during lunch.
Normally state visits see leading figures from national like the prime minister and Commissioner of the Met Police introduced to the visiting foreign leader, but it was just the three senior royals taking part in the ceremonial welcome. The couple is expected to have tea with Prince Charles and Camilla at Clarence House this afternoon as well as take a tour of Westminster Abbey with Prince Andrew.
The anniversary events will begin in Portsmouth, England, where the invasion was launched, and then move to Normandy, France, where Allied forces began to recapture Western Europe from the Nazis.
For the occasion, Melania wore a tailored white collared pencil dress paired with a dark navy belt and a white hat.
First Lady Melania Trump arrives at the Japanese style annex inside the State Guest House in Tokyo on May 27, 2019.
Her Maj shook hands with Trump and smiled before turning to greet Melania.
The dress, at mid-calf length and with a slightly flared style, features an embroidered floral design that runs diagonally down the front from right to left. She completed her look with Manolo Blahnik heels.
New bans in place on U.S. citizens visiting Cuba
These cultural and educational tours allowed thousands of Americans to visit the island as part of a scheduled visit. Tourists ride inside a vintage auto as they pass by the Norwegian Sky cruise ship in Havana, Cuba , May 7, 2019.