Copy Kate: 10 Looks the Duchess Borrowed From Your Favorite Celebs

Kim wore the shorter, sleeveless version of this Alexander McQueen dress in 2011 with fierce and funky accessories, while Kate wore hers for the first time at the Diamond Jubilee River Pageant in 2012. The duchess completed her more demure look with beige pumps and a Lock & Co hat.

Kate wore her cream version of the Barbara Casasola dress to an award ceremony at the Natural History Museum in July this year, accessorizing with pale pink strappy sandals and a sparkly vintage clutch. Two weeks later, Hollywood royalty Melanie chose the black version for a Hallmark event, teamed with matching underwear and peep-toes.

What are the odds? The princess and the movie star both wore the multicolored Tory Burch dress on the exact same day — but thousands of miles apart! Kate teamed it with black strappy sandals and an orange pashmina for dinner in the Himalayas with the king and queen of Bhutan, and Drew favored taupe heels for a fundraising event in New York.

SJP wore the navy version of the Alexander McQueen number with a pop of red for hubby Matthew Broderick's Walk of Fame ceremony in 2006, while Kate sported the cream version with navy pumps during her Canadian tour five years later.

In season four of Gossip Girl, screened in 2011, Blair wears the sparkling blush Jenny Packham gown, and in June that year, Kate chose a slightly different version for a charity gala. However, burlesque star Dita had worn her version of the dress first — at a fashion party in Germany at the beginning of the year.

Is Kate a secret Gossip Girl fan? Not only did she follow in the immaculate footsteps of the inimitable Blair Waldorf, but she also chose a Jonathan Saunders number for an engagement in the Solomon Islands — as seen on Lily van der Woodsen in season six.

Angelina wore the silky Jenny Packham gown first — in scarlet at the Tree of Life premiere in May 2011. Kate chose the silvery gray version for a charity event four months later.

Kerry went first with this cream and black Temperley London dress, choosing it for a Clinton Foundation event in 2009 and teaming it with a sleek updo and black accessories. Just after her engagement, Kate attended a charity event and wore the dress with black opaques and jacket more suited to the December weather.

The first of the trio to wear the Roland Mouret Lombard dress was Amber Valletta, choosing the jade version for a fashion party in 2009. Former First Lady of France Carla went for midnight blue at a state dinner in 2010, and Kate selected cream for a charity event in 2012.