Who are the sharks?They are self made #business experts worth billions!Kevin O'Leary,a shrewd venture capitalist, made his fortune selling a #childrens #educational company.Daymond John dominated the #fashion world with fubu and a global expert behind multiple brands.Robert Herjavec,son of an immigrant factory worker,founded one of the largest #cyber security firms.Lori Grenier,queen of QVC, holds over 100 patents.Mark Cuban,renound billionaire tech mogul and the outspoken owner of Dallas Mav's.