Watch Grimes Debut New Song "Go" at Governors Ball

Watch her perform the song she wrote for Rihanna with Blood Diamonds, one of three she premiered at Gov Ball.

One of the reasons we were so excited about New York's Governor's Ball festival is that it marked the occasion of one of Grimes' first live sets in months. As we expected, she took the opportunity to debut new material in grand style, including "Go," a song she and Blood Diamonds wrote for Rihanna. You can watch a fan-shot video, which'll give you a sense of the song's massive pop atmosphere (that drop!). Grimes also premiered two other new songs, "David" and "Sleepwalking," and we're on the hunt for video - we'll keep you updated.

Grimes, "Go":