Lorde announced Wednesday that she would be dropping her first single in two years called "Green Light." The Kiwi songstress has been teasing fans on social media all week, but finally confirmed what they were hoping for: new music. "I am so overjoyed to finally announce that my first single, GREEN LIGHT, is coming out tomorrow at 8am nz / 2pm nyc," she tweeted. Lorde, 20, launched a new website that gave viewers a glimpse of her riding in a car with dance-like beats playing in the background. Another teaser showed her dancing her heart out in a club to her own vocals. Now, we finally understand why.