Kiss Me Once.
It started off well with her getting signed to Roc Nation. I thought they were actually going to try and take the success she achieved with Aphrodite and show that she can still score hits at her age.
Then Into The Blue came.

The lead single was cute but the video was so boring. I think I've watched it once, maybe twice? I don't even remember if she promoted it much. She forced her contestants to perform it on the Voice but other than that? ...
Then once the album came out, it was horrible on first listen. Some tracks grew on me (Million Miles, Feels So Good, Fine) but most of it was phoned in. It was like Sia wrote her any old **** and she recorded it just because it's Sia.
That collab with Enrique deserves a special mention. I can't believe my fave produced one of the worst ****ing songs I've EVER heard in my life.
Let's not even discuss I Should've Cancelled.
Talk That Talk
I feel like it's her most forgotten album. It's kind've just... there. Although it has one of her biggest hits and gave Calvin Harris a career, I don't think even the Navy use the album anymore.
All I Need
I've been on ATRL five minutes but already dragged the living **** out this album on multiple occasions. It's actually a good album but they released singles left and right, feeding radio anything hoping something would stick. Then they changed the art direction of the album halfway through, released that god-awful cover

with that shoddy bob and terrible design. Glorious was a good era to launch her career, especially with the success of Clarity. I can't believe she ****ed it up that bad.
Ari doesn't really have one. Nobody will call the ME era tragic so it's a toss up between her debut and Dangerous Woman depending on how you look at it.