Pop icon displays her signature pursed lips in adorable childhood snap on her birthday – can YOU guess who it is?

She’s a former pop icon who rang in her 51st birthday on Thursday.

And to mark the milestone, her loving husband took to Instagram to share a gushing post wishing her a happy birthday.

Among the slew of throwback snaps of the smitten couple together, the footballer shared two very sweet photos of her as a young child.

In one shot, the fashion designer could be seen sitting with a pink sweet-covered birthday cake sporting long brown hair with a blunt fringe.

While a second saw the the mother-of-four donning a blue striped jacket with her hair in bunches and giving the camera her now signature pout.

But can you guess who it is?

It’s Victoria Beckham!

The Spice Girl’s husband David was quick off the mark to share a celebratory post, with a number of loved-up snaps of he and Victoria when they were younger, as well as the childhood pictures.

The footballer, 49, also posted a racy shot of the pair kissing and embracing in a swimming pool and another hugging as they posed on a boat.

Captioning the photos, he penned: ‘Happy Birthday to the most amazing Wife, Mummy & Best Friend that we could all wish for.

‘Have the most perfect day because you deserve to and we love you so much @victoriabeckham.’

David also shared a family photo, which seemed to be taken by him, of Victoria with their children Brooklyn, 26, Romeo, 22, Cruz, 20, and Harper, 13.

Commenting on the post, Victoria and David’s youngest son Cruz said: ‘I love you so much mum x from day 1 you have showed us unconditional love and haven’t stopped since .’

He also shared a throwback snap with his mum from when he was a baby on his Instagram Stories, as he wrote: ‘Happy birthday to the most inspirational mum, you have done everything for us .’