A representative for Gekko told Page Six exclusively the patron was drunk and became “aggressive”.
They added: “An intoxicated guest was overbearingly taking photos of fellow guests and was asked to stop. He continued taking photos and was calmly escorted off property.
“The guest then returned in an aggressive attempt to rush the door and re-enter the restaurant, to which he was prevented from entering.”
In footage of the chaotic aftermath a woman can be heard screaming, “He’s a family man, celebrating his daughter’s 21st birthday.”
Another woman can be heard calling for employees to be fired for their behaviour, yelling: “How dare you! Where’s the manager? How f****** dare you! That’s f****** crazy! Someone needs to get fired.”
Meanwhile, the former Spice Girl could also be seen in footage rushing Harper into a black SUV outside while flanked by security.
A source told Page Six the man at the centre of the bust-up allegedly “bum-rushed” the door and that’s when security stepped in and got physical.
The singer-turned-fashion designer downplayed the drama on her Instagram, where she posted a series of photos from the “fun” night, saying: “I LOVE MIAMI!!! So much fun last night!! Kisses @davidbeckham @antonelaroccuzzo @leomessi xxxx.”
Her group, which also included her husband David and soccer player Sergio Busquets, 35, had been celebrating Inter Miami’s 4-0 victory over Charlotte FC in the Leagues Cup.