Maddie Ziegler might have completed her trilogy music video with Sia - "Chandelier," "Elastic Heart" and "Big Girls Cry" - but that doesn't mean that the friendship between the two of them is over.

In an interview with Harpers Bazaar, the "Dance Moms" star opened about her relationship with Sia. Maddie Ziegler revealed that she has grown very close with Sia.

"We just hang out, we went to brunch one time but for the most part I go to her house and we eat and watch TV," she shared.

When asked about how their working relationship came about, Maddie Ziegler revealed that Sia was actually a fan of her show, "Dance Moms."

"We started working together because she's actually a fan of our show 'Dance Moms.' She tweeted me and said that she would love to work with me and she wants me to be in her new music video for 'Chandelier' which was her new song at the time," she said.

The 12-year-old dancer said she could not believe it when Sia asked her to star in her music video.

"My mom and my whole team saw it and told me, but I was like 'Wait, what?!' I didn't know if it was real because it's not typical for a random offer to be in a music video from a celebrity. It's almost like if Beyonce was like, 'Hey! Be in my music video!' But it was real and we contacted her and two weeks later we actually flew to L.A. and I filmed the video."

In a recent interview with Nylon, the dancer gushed on what it's like to be working with Sia.

"I love hanging out with her because she's super funny and is always having a laugh with everyone. When I'm with her, I have no worries in the world."