Victoria Beckham has shared a sweet mother-daughter moment with her fans, posting a picture to Instagram of herself and Harper in matching dresses.

"Kisses from posh and baby posh" the designer captioned a mirror selfie.

In the photo, Victoria and her nine-year-old daughter are both wearing similar style spaghetti-strap mini dresses.

The little black dress recalls some of Victoria's most iconic archive fashion moments. When she joined the Spice Girls in the 1990s, Victoria often wore Gucci-inspired black spaghetti-strap minis on tour and for press events while pulling the band's signature 'Girl Power' pose with a peace sign.

Harper wears a white iteration of the dress in the picture, which recalls the style of Baby Spice, Emma Bunton.

Signalling her approval of the copy-cat moment, Bunton swiftly commented on the photo after it was posted with a peace sign and girl emoji.

Slip dresses are a big trend for spring/summer 2020, though Victoria's latest collections have been dominated by more bohemian style midis and maxis. For autumn/winter, tweed, florals and 1970s style silhouettes dominate the designer's offering.

Victoria did not confirm whether the dress is a piece from her Spice Girls wardrobe, nor whether Harper's mini-me version is also from her own wardrobe.

The initialled phone case which Harper holds is by celebrity favourite, Chaos.