Sia and Maddie’s New Project

Sia and Maddie Ziegler, the young dancer who stars in Sia’s videos, have scored a lot of success by combining their talents. Sia is now sharing her talent with another member of the Ziegler family.

Sia has co-written a song called “Wonderful” for Mackenzie Ziegler, Maddie’s 14-year-old little sister. It’s out now at all digital and streaming services, and Mackenzie performed it live during last night’s episode of ABC’s Dancing with the Stars.

No word on whether her big sis will star in the song’s video.

Mackenzie, who appeared for six years on the Lifetime series Dance Moms, is also a Teen Choice Award winner and the star of Total Eclipse, a series on YouTube’s Brat channel. In addition, she has her own makeup line, “Love, Kenzie.”