"Dance Numbers" refer to specific segments in performances, such as musicals or theatrical shows, where characters express emotions or advance the story through dance. These segments often feature choreographed movements that complement the music, creating a visual spectacle that engages the audience. In the context of musicals, dance numbers can vary in style, from ballet to jazz, and are often performed by a cast of dancers. Iconic examples include the energetic routines in Broadway shows like West Side Story or Chicago, where dance plays a crucial role in storytelling and character development.