Victoria Beckham surprised everyone on Thursday with a very rare throwback family photo from when she was a child.MORE:- Victoria Beckham poses in a bikini in family picture as she honours son Brooklyn – 'We all love you'The mother-of-four shared the wonderful picture to celebrate her own mother's birthday. She penned: "Happy birthday @jackie.adams_! We all love you so so much!!!! So many kisses from us all (by the way… how cute was I? [laughing face and love heart emoji])."WATCH: Victoria Beckham's daughter Harper welcomes adorable new family member The image showed mother Jackie with her two daughters, Victoria and Louise, and Posh looked very different with a parted fringe and a gap between her teeth.It's rare to see Mrs Beckham flash a smile, so even if it's in a throwback picture – we'll take it!A post shared by Victoria Beckham (@victoriabeckham)Victoria gives a sweet smile to the camera in this throwback snap Proving she was always into fashion, Victoria was sporting a fabulous outfit though – a pink fringed dress with beaded details.