Mackenzie Ziegler, born in Pittsburgh, Pennsylvania, quickly became one of her generation's most influential rising stars. The professional dancer, singer/songwriter, and actress starred on Lifetime's hit reality TV series Dance Moms for six seasons. Taking her talents to new levels, her debut album soared to #1 on the iTunes Pop Charts. Mackenzie expanded her creative crafts by partnering with powerhouse brand Justice clothing, and brought her own flair to the Mackenzie Ziegler for Justice Active collection. Find out more on MackenzieZieglerMusic.com. Madison Nicole Ziegler, born in Pittsburgh, Pennsylvania, is a professional dancer and actress. She was one of the stars of Lifetime's Dance Moms for six seasons, and was the lead dancer in Sia's critically acclaimed music videos "Chandelier," "Elastic Heart," and "Big Girls Cry." Maddie was also a judge on So You Think You Can Dance and stars in the film The Book of Henry.