Sia: The Greatest (2016) (movie): This Sia song is an emotional tribute to the victims of the Orlando shooting that killed 49 individuals at the Pulse Nightclub. It stars Sia's muse, Maddie Ziegler. Choreography by Ryan Heffington; directed by Sia and Daniel Askill. Discover the latest Discussions, Reviews, Quotes, Theories, Explanations and Analysis of Sia: The Greatest (2016) below