Dancing with the Stars 'Dancing with the Stars' adds Nick Carter from Backstreet Boys to Season 21 cast 08/26/2015 Dancing with the Stars has signed on Backstreet Boys member Nick Carter. Read More RELATED NEWS Kym Johnson posts new photos of baby twins with Robert Herjavec -- "Double trouble"Kym Johnson and Robert Herjavec announce gender of their twin babies!Kym Johnson and Robert Herjavec expecting twin babies! TAGS: Dancing with the Stars House of Carters Aaron Carter Joey Fatone Karina Smirnoff Nick Carter Bindi Irwin
