“Ultrafest this year was the biggest one they’ve had ever,” Tiësto said. Diplo played with his Major Lazer act during the day. I closed Ultrafest. So we thought, let’s make a combi-video. “C’mon” is right in the middle of his crowd and my crowd, and I think everybody is really happy with the result. That’s why the video is like that. You see his crowd and my crowd. You see him DJing and you see me DJing.