Fans went wild over the photo, with the Spice Girls official account writing: "💘 always a Spice Girl"
One user poked fun at Posh's iconic scowl: "She has a smile that lights up a room! 🙄"
Time really does fly - little Bluebell is now 12-years-old and Brooklyn is 20.
The aspiring photographer shared a tribute of his own to his mum in the form of an adorable shot showing Victoria holding him as a baby during his dad David's stint at Manchester United.
"Happy birthday mum xx I love you so much x you are the best mum and an amazing woman xx," Brooklyn wrote to his 11.5 million followers.
Victoria is also mum to sons Romeo, 16 and Cruz, 14 and daughter Harper, seven with husband David.
The celebrity duo have been married for almost 20 years, and David showed his love to his wife with a sweet social media message.
Watch this video to see Becks playfully tease Posh over her high heels!