Sia has split from her husband Erik Anders Lang

In a joint statement released to People magazine, the couple said: "After much soul searching and consideration we have made the decision to separate as a couple. We are, however, dedicated to remaining friends. There will be no further comment."

Meanwhile, Sia previously admitted she was disappointed she couldn't show Erik her native Australia because they were constantly being followed by fans.

She said at the time: "It's kind of disappointing because we can't do anything. I'm kind of a bit famous. I didn't realise I'm so famous. It's crazy but I'm thinking I might rock a [disguise]. I've got some plans. We would really like to get out but also the rain is pretty crazy."

And the 40-year-old singer previously revealed she feels "hunted" by the paparazzi.

She shared: "It's unpleasant. It makes me feel hunted. My friends were with me the other day when the paps were at the airport and it was like they all got diarrhoea and I had to explain ... you go into fight or flight (mode). You feel like prey and they're the predator and you're being hunted. Would you like to spend your life feeling like prey? Probably not ... It's just wanting to have a regular life, just like a regular person but still be able to make music and sing. But to do that without having to sacrifice having just a regular life, that's all I want."

Sia has used her marriage as inspiration for her music in the past, having penned a song about their relationship.

She confessed at the time: "It's not really my jam although I did write one right before we got together I like to say is about us. I'm trying to pitch that to Maroon 5 or Bruno Mars. It's called 'Step By Step.'"