Despite the word "chandelier" being right there in the title of Sia's soaring single, the video for the jam is more "Girl, Interrupted" than "party girl." Yup -- it's downright crazy.

Standing in for Sia in the vid -- co-directed by Sia and Daniel Askill -- is Maddie Ziegler, the 11-year-old star of Lifetime's "Dance Moms."

The tiny dancer, kitted out in a Sia wig, channels some wild lunatic spirit, throwing herself around a crumbling house featuring a fridge covered in newspaper clippings and Rorschach Test-like windows.

Add to the general disrepair the series of seriously creepy curtseys with which Ziegler caps off the video and you've got the weirdest/best dance video since Robyn's "Call Your Girlfriend."

Check it: