Men In Black
Men In Black starts with lights going on and Tommy Lee Jones explains who they are and Will comes in saying: "And we dress in black." It basically takes place in their headquarters with the agents experimenting with alien technology. It soon has him surrounded by MIB agents while an alien comes in and screams at Will. Will Smith then leads the agents and the alien to do the "Electric Slide."
After dancing along with the agents, he goes after the alien who turns out to be the two female agents who were with him at the beginning of the video leave in the same vehicle. Disappointed, he puts on his glasses and shows his memory erasing device to the camera and says: "Sorry."