Uhh... Just because you&#x27;re not aware of celebrity fashion brands doesn&#x27;t mean they don&#x27;t exist:<p>Mary Kate and Ashley Olsen - The Row<p>Jessica Simpson - eponymous<p>Gwen Stefani - LAMB<p>Jay Z - Rocawear<p>Beyonce - House of Dereon<p>P Diddy - Sean John<p>Kanye West<p>And these are just a FEW.<p>Celebrities selling clothes is pretty lucrative.