On Season 6 , figure skater Kristi Yamaguchi won the title with him , and on Season 8 , he helped Olympic gymnast Shawn Johnson to the crown .
Ballas has coached two dancers to Mirror Ball Trophy wins in the past .
On Season 6 , figure skater Kristi Yamaguchi won the title with Ballas , and on Season 8 , Ballas helped Olympic gymnast Shawn Johnson to the crown .
Ballas has coached two dancers to Mirror Ball Trophy wins in the past .