Maddie Ziegler and Sia team up for MOVIE called Sister

2015 was definitely the year of Maddie Ziegler The Dance Mom s star made her name a household one when she appeared in Sia s hit song Chandelier music video. That is not all Maddie did to blow our minds. She also performed with Kristen Wiig at the Grammy s during Sia s performance, and also starred in an episode of Pretty Little Liars. So what is in store for Maddie and 2016 More time with Sia of course. The incredible dancer will join Sia on the silver screen in the upcoming flick, Sister Twitter: