Princess Diana’s nieces Lady Amelia Spencer and Lady Eliza Spencer star in new campaign for one of Kate Middleton’s go-to brands

Groovy.

Princess Diana’s nieces Lady Amelia Spencer and Lady Eliza Spencer went back to the sixties in a new ad campaign for Aspinal of London.

The twins, 32, went far out for the shoot, sporting blond wigs with bold bangs and slightly feathered waves. Their wardrobe reflected the theme, too, with the Spencers wearing flare jeans, floppy hats and fur vests while posing in a classic convertible and with a vintage video camera.

“This campaign highlights a shift to a new generation of British talent and style while merging timelessness with modern sophistication,” the brand wrote in a press release.

“Evoking the free spirit and romance of the 1960’s, Lady Amelia and Eliza are shot in a rustic Sussex countryside retreat wearing pieces from The Great British Season – a collection inspired by iconic moments in the British summer calendar,” it concluded.

They also modeled pieces including a woven leather tote ($1,280) as well as various versions of their classic Mayfair top handle style, including an embroidered look ($2,810) and the classic patent croc ($1,280).

Royal cousin Kate Middleton is a fan of the brand, too, and even owns the bestselling Mayfair style in multiple colors.

Plus, tons of American A-listers have carried the purse in the past, including Selena Gomez, Jennifer Lopez and Gigi Hadid.

The Spencers will serve as the brand’s newest ambassadors, with friends and fans commenting on the campaign on Instagram. “OBSESSED!! You are both so ICONIC 😍😍😍😍,” one person wrote. Another said, “Sooooo cool!!! Love the hair too! 😍😍❤️.”

Eliza commented, “A milestone moment in our journey @aspinaloflondon ♥️ truly a dream xxx” while Amelia agreed, “A dream collaboration for us 💫💫 @aspinaloflondon 💫💫.”

We can’t wait to see what the royals will wear next.