New York City's desegregated Palladium Ballroom springs to life with a diverse 1940s cast in this jazzy picture-book tribute to the history of mambo and Latin jazz. Millie danced to jazz in her Italian neighborhood. Pedro danced to Latin songs in his Puerto Rican neighborhood. It was the 1940s in New York City, and they were forbidden to dance together . . . until first a band and then a ballroom broke the rules. Machito and His Afro-Cubans...