You remember last week when Grimes revealed she wrote a song for Rihanna, but Rihanna didn't like it? And do you also remember when she said she was looking to debut the track at the Governors Ball in New York? Well even if your memory has failed you, this introduction has probably done the trick. Fantastic.

Along with the track ('Go'), Grimes also debuted 'David' and 'Sleepwalking'. We don't have footage of those tracks to share with you (they keep disappearing from Youtube), but 'Go' can be experienced below.