A post shared by SIA (@siamusic) on Dec 4, 2017 at 10:10am PST

Sia’s muse Maddie Ziegler, 15, is traveling with the singer on her music tour and appears frequently in her music videos.

In a series of tweets, Sia defends critics that say she’s damaging the child, particularly an article that ran on The Guardian titled “The Sia conundrum: if fame is so damaging, why pass it on to a child?”

“I do check in with Maddie weekly about whether she wants this, and assure her if she ever wants it to stop it stops,” Sia wrote. “Maddie was already famous when I discovered her, but I have certainly expanded her exposure and feel responsible for that. I feel very protective of her and my goal is to empower her in whatever choices she makes. Some would argue a teenager can’t or shouldn’t be charged with making sound choices for themselves and so I do try to choose the best for her always. But I think this is an important conversation.”

She concluded, “What I learned from Maddie is that fame affects her differently than how it affected me. I can only trust that she is telling me the truth. If that changes, we stop.”