At first blush “Go”, by Grimes featuring Blood Diamonds, feels like a more straight-forward, radio-appropriate track than you might expect from the enchanted Canadian pixie from Bangs Mountain. But, as the story goes, the song was originally written for Rihanna, who ended up turning it down. It’s her loss. About a minute in the marriage of dirty bass manipulation and pop delivery starts to feel a little weirder, a little Grimesier, and it all clicks into place. It manages to be both soothing and romantic and dirty and club-gritty at the same time.