For the verse of our mashup, we used the chords from "Get Lucky" with the vocals from "Happy." For our prechorus, we used the vocals from both "Happy" and "Get Lucky." The chorus of our mashup is the chords and vocals from "Happy" and the vocals from "Lose Yourself to Dance."
We are anticipating a mountain of comments about boobs. That's okay - we know boobs get people going. We didn't intend to make a "boob" video. We just thought it would be cool to project on another 3D surface.... and Nataly's boobs make GREAT eyeballs.