"Elusive" is a word often applied to Sia, the Australian singer/songwriter who found massive success in the USA with 2014's 1000 Forms Of Fear .
"I was a broken thing...had a voice/But I could not sing...You held me down," sings an artist as well-known for concealing her face as she is for her big, textured voice or her writing chops, which have benefited the likes of Katy Perry, Kelly Clarkson and Rihanna.
Several tracks on 25 and Acting, including Bird, share a co-writer/producer: the intuitive and prolific Greg Kurstin, whose extensive work with Sia  predates his collaboration with Adele.
Notably, his other contributions on Acting are to lighter and more groove-driven tracks, including the throbbing, overtly sexy Move Your Body and the fiercely funky, exhilarating Sweet Design , which will get you moving, indeed, if you have a pulse.