Jonna Lee, aka some of brains and all of the singing behind visual/audio collective iamamiwhoami, is now ionnalee and has shared the artwork to her new single, 'Samaritan'.
It's that image above, obviously.
According to an email and this here link, it has something to do with Comme des Garcons too.
Also, there's a Twitter and an Instagram account for people to follow if they're so inclined.
td;dr — it definitely wasn't Christina Aguilera.