The 39-year-old singer-songwriter released her last album '1000 Forms of Fear' in July last year, reported Aceshowbiz.
"I'm super productive. I have a full album ready to go and it's much more pop. I'm calling it 'This Is Acting' because they are songs I was writing for other people, so I didn't go in thinking 'this is something I would say.' It's more like play-acting. It's fun," Sia said.