Grimes performed Austrian composer Franz Schubert's "Ave Maria" during the Seoul stop of her Ac!d Reign tour in support of last year's Art Angels. The FADER cover star kicked off the night's encore with "Ave Maria" (which you can see above around the 09:38 mark) before going into "Oblivion" and current fan-favorite "Kill v. Maim." On tour, Grimes is accompanied by HANA, who performs in Grimes' live band and acts as a supporting act as well. Revisit Grimes' FADER cover story here.