Just when you thought you'd seen it all this Halloween, two of our favourite costume-loving celebrities decide to dress up and recreate Sia's 'Chandelier' video.
And this year, Heidi has taken things to a whole new level by appearing on the Ellen's talk show in a hilarious skit with the host.
Ellen came out on stage for the special Halloween episode dressed as Sia - complete with her signature long-fringed wig.
"Happy Halloween, everybody! As you can tell, I'm Sia, and the problem is I can't really see ya."
"Sia and I have a whole lot in common," she continued. "She's Australian, and I married an Australian, and we both like to swing from a chandelier—which is why I'm no longer welcome at Bed Bath & Beyond."
The talk show host then introduced her co-performer, Heidi Klum, dressed up as 14-year-old dancer Maddie Ziegler.
And Heidi was clearly not holding back - dancing for her life on stage in a nude leotard.
"Let's just go for it!" she exclaimed, just before the performance.
Watch the whole hilarious video below -
Heidi Klum - we salute you! You own Halloween!