At first, I was kind of bummed that Sia herself wasn’t going to appear in the video, but my disappointment faded as I quickly became mesmerized by Ziegler’s bizarre dancing. After jumping, twirling, and cartwheeling her way around the bedroom, Ziegler moves in to the kitchen, and then eventually the living room. All the while, she never stops moving. I imagine that at least some of this routine was choreographed, but often, it feels like she’s just making it up as she goes along — and that’s awesome. As the song comes to a close, Ziegler stands in the apartment’s open doorway, repeatedly curtsying, a maniacal smile plastered across her face. Whoa. It’s a creepy image, but also a powerful one. It’s like she’s saying, “Enter…if you dare.”