Young Kate and Pippa Middleton were bridesmaids in their uncle's 1991 wedding

They made headlines -- and for Pippa, quite a splash -- at the Royal Wedding in 2011, but that's not the first time the Duchess of Cambridge, Kate Middleton, and her younger sister Pippa Middleton stole the show at a wedding.

Sisters Kate and Pippa made the most adorable pair of bridesmaids when they were in their uncle's wedding in 1991. See a 9-year-old Kate and little sister Pippa, 7, as bridesmaids in this never-before-seen footage, obtained by the Daily Mail.

I mean -- those puffy sleeves, the flower crowns! Forget it. They're too cute for words.

Also in the home video is the Middleton's youngest child, James, who is decked out in a 3-piece suit as a page boy and looks adorably dashing in his top hat. He was only three years old at the time -- but a total trooper, and so well-behaved!

The best style moments from Kate's royal wedding:

The bride is wearing a long sleeved off-the-shoulder dress with a train that perfectly fans out around her. Even though the wedding was 25 years ago, it's a dress we could see brides wearing today as off-the-shoulder is still a big trend. (Can't say the same about those puffy, tea-length bridesmaid dresses, though ...)

See also: Pippa Middleton sets a wedding date: Get all the details

Throughout the video, Kate laughs and smiles, holding her little sister's hand, but Pippa doesn't seem quite as amused. At one point, she decides that flower crown is just *not* working for her anymore and pulls it off as an adult bridesmaid tries to help her fix it.

Carole Middleton can be seen looking on in a pretty blue patterned dress as her kids pose with the bridal party. It was her younger brother Gary's wedding.

Seeing this video, we can't help but get excited for the next royal(ish) wedding to come. If not actually royal, it's definitely going to be the society event of the year.

Pippa Middleton's nuptials is on the horizon -- she's set May 20th, 2017 as the day she'll tie the knot to James Matthews -- and we're definitely in for more cuteness on that day. It's believed that while Duchess Kate will not be a bridesmaid, both Prince George and Princess Charlotte will have big roles in their aunt's wedding. We can see it now -- Kate and William's little ones will be too cute all dolled up for the big day!

See Kate's transformation from adorable little girl to elegant Duchess, below: