Axelle/Bauer-Griffin/FilmMagic

She may lay it all out there when it comes to her music, but Sia is notoriously guarded and private (if her penchant for face-masking wigs didn't give that away).

She's now come out with some personal news, though: She and husband Erik Anders Lang are separating after two years of marriage.

In a statement to People, the couple says that they came to their decision "after much soul searching and consideration," and that they're "dedicated to remaining friends."

And another one bites the dust ... 😢