Gobsmacked shoppers couldn't believe their eyes as the doting mum and dad accompanied the 15-year-old for his rite of passage and helped him pick a sparkling stud for his left lobe.
The Sun reported that Brooklyn and superstar dad David, 39, sneaked into the branch of Claire's (!) in the Westfield Centre by the back entrance.
A few minutes later, Victoria and Brooklyn's younger brother Romeo, 12 – the most stylish of the Beckham brothers following his Christmas modelling assignment for Burberry - walked in through the front.
Manager Joe Parker told the paper: "They picked the most expensive earring - but Victoria told him to go a size down so it wasn't too blingy.
"Brooklyn was cool but I was so nervous, I was like, 'I can't mess this up'."
Ex-England skipper turned housedad David watched Brooklyn get the stud as Posh, 40, browsed the store in the packed shopping centre in Shepherd's Bush, West London, on Saturday (November 22).
Fashion designer Posh apparently also bought some £20 hair extensions and paid £45 for the earring and piercing.
Joe said mall security had set up the short-notice visit.
He said: "They didn't ask us to close. A few customers noticed, but things stayed calm. I think they were in disbelief."
The Beckhams left by the back door after 30 minutes.
Joe, 27, said: "I couldn't believe what I had experienced. They were a lovely family."
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