Sia appeared on Late Night with Seth Meyers last night (9 June) to perform 'Chandelier' - but rather than showing her face, she got Lena Dunham to perform an interpretive dance instead. Watch it below.
The singer, who is responsible for the vocals on Flo Rida's 'Wild Ones' and David Guetta's 'Titanium', and has also penned songs for numerous other artists, is famously guarded about showing her face on TV.
She also rarely tours, telling ReelGay TV: "People clapping is nice but it does not feed my ego or the God shaped hole, so I write pop songs for pop stars now. I'm writing a record, I'm putting it out, but I'm not touring it or promoting."
She added: "I just basically write pop songs for pop stars, sit at home on my sofa with my three dogs and make a million dollars, so it's an epic life, it's like the big dream."
Watch Sia (and Lena Dunham) perform 'Chandelier' below
The singer recently released the track 'Elastic Heart' which formed part of the Hunger Games: Catching Fire soundtrack.
Sia's sixth studio album, 1000 Forms Of Fear, is due for release on 8 July, and the lead single 'Chandelier' is out now.