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Victoria Beckham tweets a photo as the couple are joined by the teen popstar.
The pregnant designer, 36, Tweeted: 'OMG!!!! A visitor just arrived!!!! Guess who????
'And now he is sunbathing... He took my sunbed.'
But on closer inspection it looks like it's not the real Justin Bieber but a cardboard cut-out.
Last week David revealed that his son Romeo wanted the couple to name their next child Justin Bieber Beckham.