Yep - That's Our Sia Singing In A Box On Ellen's Show

Since Sia 'retired' from live gigs she has found increasingly original ways to promote her music via shrouded performances via TV and online.

It all began with the back-to-the-audience-stood-in-a-corner performance on influential US talk show Ellen back in May last year, followed by a series of appearances that included lying face down in a bed, hiding behind a veil and then there was those bananas.

Sia returned to Ellen on Friday to perform her latest hit Elastic Heart. And, using her signature outside-the-box thinking, Sia performed inside a box.

Watch below: