First up: Crown Princess Mette-Marit and Crown Princess Victoria and their twin appearances with, uh, themselves.
Above, in Copenhagen in 2010 for Margrethe's 70th birthday, and below, also in Copenhagen for Margrethe's birthday, five years on. Mette-Marit's even wearing the same gold headband, which (as the Royal Hats Blog points out) she's worn in several different ways.
"So, whaddya think...same thing this time, except different?" "AGREED."
For the same same thing, you need look no further than the Mexican state visit to the United Kingdom a month earlier.
Mexico's first lady, Angélica Rivera de Peña, sported Mette-Marit's Alexander McQueen coat first. It's an A-line crepe coat in ivory with a double lapel detail, and the only surprising thing about this is that one of the British royal McQueen fans didn't beat both ladies to it. (Perhaps they will join the party later on. I'd love to see this one belted, just to shake it up.) Unusually for one who loves the colorful accessories, I prefer the First Lady's black touches to the Crown Princess' gold/red/nude mix in this Who wore it best? battle.
Our other twin - nay, triplet! - moment from the City Hall event comes from Crown Princess Mary and the gray hat she paired with her Oscar de la Renta coat dress.
As soon as she emerged with this chapeau, I thought it looked familiar - Kate-esque, I said - and indeed it was. From favored royal milliner Jane Taylor, this is a hat we should know well by now.
Zara Phillips sported the same gray version to Cheltenham over a year ago. She paired it with a truly unfortunate outfit that I will pretend I did not see since baby Mia was just a few weeks old at the time. But the original royal example comes from the Countess of Wessex, who wore a version in a different color and material to Ascot in 2013, paired with an Emilia Wickstead outfit in gorgeous vibrant teal. (An outfit that would get a lookalike of its own when the Duchess of Cambridge wore a similar number in New Zealand last year. It's just a chain that never ends.)
Mary's got the lock on sophistication in accessory pairing, but Sophie's version is a welcome shot of color. I'll call this one a tie and I'll take both for myself, outfits and all, thanks very much.
Your turn: Which versions of these twin appearances are your faves?
Photos: via Getty Images as indicated, Net-a-Porter, ITN video
Your turn: Which versions of these twin appearances are your faves?
Photos: via Getty Images as indicated, Net-a-Porter, ITN video