The video shows a person decorating a cake with vibrant colors. The cake is covered in a black icing, and the person is using a spoon to drizzle different colors of icing on top of it. The colors include blue, green, yellow, orange, and red. The person is also using a spoon to add more colors to the cake. The video is shot from a top-down perspective, and the person's hands are visible as they work on the cake.