Lindsay Arnold, a celebrated dancer, became the youngest professional dancer on "Dancing with the Stars" at the age of 19. Before her rise on the show, she was a finalist on the last season of "So You Think You Can Dance." Lindsay began dancing at the tender age of 4 and continuously honed her skills. She trained in Utah under some of the nation's top instructors, including Shirley and Mark Ballas. Her dedication and talent earned her first place in both the United States Open Youth Latin Championships and the United States Open Junior Latin Championships. Additionally, she was a top 3 finalist at the World Junior Latin Team Match, marking her as a distinguished figure in the dance community.