Tap Legacies, "In Balanchine's Classroom," and Sienna Lalau

The 100th anniversary of "Shuffle Along" and the birthday of Bill Robinson prompt a consideration of the tightropes Black tap dancers have had to walk. The trailer for the documentary "In Balanchine's Classroom" raises eyebrows. Lil Nas X and choreographer Sean Bankhead celebrate queerness on "SNL." Dancer and choreographer Sienna Lalau joins to discuss the wide-ranging impact of commercial dance.