Grimes cover of Franz Schubert's 'Ave Maria'
So happy I stumbled across this. I heard Canadian songstress Grimes play this at Glastonbury, and was totally blown away by it. Kind of assumed it was just a live thing and I may never hear it again, but I came across it spontaneously on YouTube earlier. Happy days!
As far as contemporary electronic versions of classical songs go, this is pretty God damn good.