Madison "Maddie" Nicole Ziegler (born September 30, 2002) is an American dancer, actress and model who achieved wide notice at an early age. She first became known for appearing in Lifetime's reality show Dance Moms from 2011 (at age 8) until 2016. From 2014 to 2016, she gained wider fame for starring in five music videos by Sia, including "Chandelier" and "Elastic Heart", which cumulatively have attracted more than 3 billion views on YouTube. Ziegler has guest-starred on scripted shows, danced on various TV shows and at concerts, and has been seen on magazine covers and in feature articles. She has modeled for Capezio, Ralph Lauren and Target, among other brands. Ziegler was included by Time magazine on its list of the "30 most influential teens" in each of 2015 and 2016.
Ziegler was a judge on the 2016 season of So You Think You Can Dance: The Next Generation, toured with Sia in North America in late 2016 and toured in Australia with her sister in early 2017. She is expected to make her feature film debut in The Book of Henry (2017).