In 2018, Princess Catherine appeared at the Victoria and Albert Museum in a modern tweed purple and white tweed dress by Erdem. With its haphazard pattern, chunky belt, and asymmetrical neckline, the dress didn't initially seem to be inspired by the Queen's more classical style. However, the dress was apparently directly inspired by the Queen's meeting with Duke Ellington, the famous Jazz pianist, in 1958.

"Her father [King George VI] had been a huge fan of his music, and when they met, he was so enamored with her that he wrote a piece of music called 'The Queen's Suite,'" designer Erdem Moralioglu said of the dress, according to The Telegraph. "Thinking about The Cotton Club, and Harlem, and Dorothy Dandridge, Ella Fitzgerald and Billie Holiday. What if she went to New York, and what if Dorothy Dandridge ended up in Buckingham Palace?"