Question: Noah Matthew Galloway (born October 28, 1981) is a former United States Army soldier, motivational speaker, and extreme sports enthusiast, he was a contestant on "Dancing with the Stars" season 20, paired with which Australian ballroom dancer who is best known for being a professional partner, born on June 21, 1985?
Sentence (from "Witney Carson"): Carson was promoted to being a "professional partner" in season 18.
Relevant evidence: No