Is the new album Fairytale themed?
Into The Blue - obviously a metaphor but can also mean the ocean? The single cover does look kinda like a mermaid those were my first thoughts.
Kiss Me Once - a reference to sleeping beauty? Snow white? Her eyes are closed (sleeping) and she's behind glass on the cover (snow white was in a glass coffin). She needs to be kissed once to wake up
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Also Kiss Me Once is rumored to be a Sia/Greg Kurstin track (Source: SayHey/Twitter)