Buzz·Posted on 19 Apr 2016Sia's Coachella Set Will Blow Your Goddamn MindShine bright like a diamond.by Tahlia PritchardBuzzFeed Staff, AustraliaLinkFacebookPinterestTwitterMail The ever-iconic Sia performed at Coachella over the weekend, and her set was freakin' legendary. Tap to play GIF Tap to play GIF Of course Maddie Ziegler made an appearance... Tap to play GIF Tap to play GIF ...oh and yes, hello there Kristen Wiig. Slaaaay Sia, you beautiful singing queen.