One of the most successful businessmen in America, Mark Cuban was best known by sports fans as the passionate owner of the Dallas Mavericks NBA basketball team. A highly successful entrepreneur who founded HDNet, Broadcast.com and MicroSolutions, Cuban went on to sell Broadcast.com and Micro Solutions to Yahoo! and CompuServe, respectively – making billions. It was this level of success that made people scratch their heads when Cuban joined the cast of ABC's fifth season of the popular dance competition, "Dancing with the Stars" (2005- ). Partnered with Australian professional, Kym Johnson, Cuban's level of dedication to nailing the complicated routines – despite having no dance training – impressed audiences enough to keep him around longer than his skill level dictated.