The Princess of Wales has worn an endless array of stylish designer looks since marrying into the royal family in 2011.
However, Kate, now 42, was known to enjoy an evening out with her sister Pippa prior to her royal wedding and it appears her eye for an on-trend piece pre-dates her nuptials to Prince William.
Kate and Pippa headed home from Mahiki
In unearthed photos from February 2007, a 25-year-old Kate Middleton was spotted in a taxi with her sister, then 23-year-old Pippa heading to Mahiki, the ultimate noughties It-girl spot on London's Dover Road.
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Kate giggled with her sister
The Princess was spotted wearing a silver and yellow printed satin midi dress. The garment featured a V-neck neckline, spaghetti straps, and a floaty skirt.
Kate wore layered jewellery
The dress was accessorised with a layered necklace and an en vogue shoulder bag. The royal-to-be styled her brunette locks in a bouncy blowdry that has since become her most iconic look.
The Middleton sisters wore noughties silky dresses
Meanwhile, the former Duchess of Cambridge's sister shared a joke with Kate in the cab in black stilettos to match the black bolero cardigan which was worn over her silky printed dress to match Kate's.
Kate and Pippa head out
Pippa and Kate Middleton headed out to Asprey
The Middleton sisters were spotted later that year when they attended the book launch party of The Young Stalin: The Adventurous Early Life Of The Dictator 1878-1917 by Simon Sebag Montefiore, at Asprey in London.
The mother of three opted for a sheer off-white lacy slip dress, while the now-wife of James Matthews wore a floral number with her go-to bolero.
2007: A stylish year for Kate
Kate was a noughties It-girl
Prince William's girlfriend was spotted on a number of outings in London three years before King Charles' son popped the question.
The Badminton Horse Trials called for a white mini skirt and knee-high boots combo topped off with cool shades and a statement belt.
Kate would never be seen in jeans and Uggs now
Meanwhile, William's love surprised in Ugg boots when she stepped out for a stroll in London wearing low-rise jeans and another 2000s shoulder bag.
Prince William, Zara Tindall, and Kate Middleton attend day 1 of the Cheltenham Horse Racing Festival in 2007
It was, however, a tumultuous year for William and Kate as a couple. By this time, Kate and William had been dating for four years having previously shared a student house at St Andrews.
Kate arrived at the Concert For Diana with her brother James
However, in 2007 the pair split twice - first in January and again in April. It has been reported that the future king felt they "needed space" to "find our own way".
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They had reconciled by July and Kate was spotted at the Concert for Diana at Wembley Stadium.
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