"Where do I go?" queried Moss to one of her handlers as she was besieged by camera crews, photographers and fans upon entering the 7th floor.
Moss posed for the requisite shots with Topshop's Sir Philip Green as even the jaded fashion editors in attendance unabashedly pulled out their cell phone and digital cameras to capture the fashion icon. Nearby, friend Sadie Frost looked on with bemusement and danced with the DJs.
"I'm here to support my friend," she explained, showing off one of Moss' looks.
Simon Doonan admitted to being a fan of the High Street store himself.
"Whenever I go to London I always go to Topman," he offered. "Over there, men actually care about how they look. It's not like here."
Any stylish men hoping to learn some low-priced wisdom from Moss are in for disappointment.
"I know what makes a man look good, but I'd never be able to design for them," said the model, before being ushered upstairs to the cordoned off 8th floor where she remained for most of the party.
BFF Naomi Campbell joined her later, taking fashionably late to new levels by showing up 15 minutes after the party was supposed to end.