The paparazzi were always after the then Kate Middleton, who had been dating Prince William for many years by this point.
They would often capture images of her out and about. She's pictured doing some shopping in an outfit that would be considered dated by today's standards.
Prince William and Kate hadn't announced their engagement yet when they attended the wedding of Harry Meade to Rosemarie Bradford.
Despite not being a royal yet, Kate had the classic look down.
William and Kate might have been married in 2011, but it was the look she wore to Christmas that year that is most memorable.
The Duchess of Cambridge received mixed reviews for her velvet hat.
The Duchess will eventually become known for recycling past outfits. One of those is this McQueen coat that has made many appearances since.
Kate is known for her mix of designer and high street items.
At the premiere of "Mandela: Long Walk to Freedom" she wore a Roland Mouret dress and Zara necklace.
Not only did Kate look stunning on her first tour as a mother, she adorably dressed little Prince George for his debut to the world.
The Duchess wore Jenny Packham to the premiere of the James Bond film "Spectre".
The dress was controversial because Kate didn't wear a bra.
The Duchess showed some Canadian pride in a red and white dress while she visited B.C. in 2016.
Yet, the biggest departure for Kate was her red shoes, since the Duchess is known for sticking to nude or black footwear.
Most women roll out of the hospital after giving birth in the most comfortable outfit they can find.
Considering the entire world's eyes were on Kate, she managed to look flawless only hours after giving birth all three times, like she's pictured here - when Prince Louis was born.
Duchess Kate looked like a fairytale princess in Alexander McQueen during the annual Diplomatic Reception.
The Cambridge Lover's Knot tiara, the Nizam of Hyderabad necklace loaned by the Queen, the Dame Grand Cross of the Royal Victorian Order and the Queen's Royal Order all helped top off the look for the future Queen.