One of them can clear $300,000 worth of product in just 24 hours.
Another is at the centre of a $230 million takeover.
Both have signed on as speakers for Ragtrader Live Melbourne, a half-day conference with digital and retail excellence at its core.
Brand ambassador Rozalia Russian, who can clear hundreds of thousands in inventory with just one Instagram post, will be joined by new additions Lisa Hamilton and Twice Blessed in a digital influencer panel.
Catch Group, which fielded a $230 million takeover offer last week, has put forward CMO Ryan Gracie to take part in a digital marketers thinktank session.
These latest speaker additions will be joined by Hugo Boss SEAPAC marketing head Vanessa Marven and The Iconic chief category management officer Mareile Osthus.
The event commences at midday on August 7 at Arts Centre, Melbourne.