Mike Wass of Idolator wrote: "The grittier electro-house sound of 'Bad' is perhaps an indication that the hitmaker is moving away from the commercial dance sound of his last LP. Former hardstyle duo Showtek ensure that the beats come thicker and faster than ever, while Australian dance diva Vassy provides the instantly catchy hook — albeit in a heavily autotuned voice."
The music video starts with shots of the world showing a zombie epidemic that has broken out. Afterwards, there is a girl looking at these shots through a stack of televisions. She then spray writes 'BAD' on a wall and goes for a stroll through the destroyed remains of a city until she spots a group of zombies. Their movements and objects, they hold suggesting that they want to date with the girl until she shatters them. She goes to her motorbike and rides out of the city where a military commander watches her through binoculars. She is then sprays on a car with writing 'BAD' again. Before she can finish, a group of zombies emerge from the ground and begin dancing before her. One of the zombies approaches her and offers a human brain. she accepts, they kiss and they are fleeing with her motorbike before the military can kill them. The military commander orders a strike from a large missile launcher on the location of the zombies. The launch kills several zombies just as the girl and guy enter a large zombies head. The missile strike was larger than the commander expected and everyone was killed except for the zombie man and woman that they were escaped from military man. The video fades out to white.