Jim Carrey Has Dance Off to Sia’s ‘Chandelier’ on ‘SNL’ [VIDEO]Jim Carrey Has Dance Off to Sia’s ‘Chandelier’ on ‘SNL’ [VIDEO]Jim Carrey has a dance off with Kate McKinnon and Iggy Azalea to Sia's 'Chandelier' in last night's Halloween-themed 'Saturday Night Live' episode.Thomas ChauThomas Chau