These two choreographers have pushed dance in bold new directions and brought it to a much wider audience. Both Twyla Tharp and Justin Peck are classically-trained dancers who have created works for the ballet, for Broadway, and for the movies. Twyla Tharp, who is about to turn 80, is an icon of the dance world. She has spent six decades challenging ideas about how the body can move. In 1973 she created what is considered the first "crossover" piece, combining ballet and modern dance, but she says she is not interested in categories; dance is dance. Justin Peck, at 33, is still in the early days of his career, but he is already choreographer-in-residence at the New York City Ballet and choreographer for the new film version of "West Side Story," directed by Steven Spielberg (coming out in December, 2021).  They both talk here about how their childhoods shaped their intense passion for movement and music, and they both describe beautifully how it feels when they are dancing.