I'm late to the discourse but my POV on the 'Left-field'gate is that the word I'd personally use to describe her recent work would be... quirky. As in, any weirdness derives not from an actual transgression of pop music as a whole or from being firmly non-commercial, but from a very cleverly curated set of references displayed throughout the whole package (which is an important distinction to make here, as I think the visuals do an important amount of work in further elevating the songs, specially in the case of Diet Pepsi).
And I think she has succeeded in providing a very cohesive collection of singles so far not only in terms of the musical style, but also in the intention behind the work, or how and why those aforementioned references were chosen. So, at least to me, it doesn't seem like they're just throwing any weird, underground references they can think of at a wall and seeing what sticks, it all seems to circle around the same core idea of creating contrast by having the very polished, commercial quality of her music as well as her wholesome, girl-next-door kinda presence clash with the more uncanny, avant-garde or deviant references sprinkled mostly in the videos and the occasional inspired production flourishes or songwriting choices.
Oh and the song + video are fab, less immediate to me than Diet Pepsi but about on par with Aquamarine.
