Be still our hearts! Two of our favorite fashion icons met for the first time today: Michelle Obama and Kate Middleton! The First Lady stopped by Buckingham Palace during the Obama family's European tour, where she had a chat with Queen Elizabeth and the new Duchess of Cambridge. Obama wore a pale green embroidered frock by Barbara Tfank paired with a cropped pink jacket, silver kitten heels, a glittery brooch, and ruby and amazonite Phillips Frankel earrings, while Middleton opted for a geometric-cut Reiss dress ($340) and a simple black clutch. Click through the gallery to see more of Michelle Obama's European style moments, including looks from Marc Jacobs, Peter Som, and Roksanda Ilincic.