Many celebrities try to fit in a mold, to live a life as personality they're not because the media expects it from them. But you can sense that these 7 are just their true selves, that they're genuine and true. Even if they have to act professionally at some occasions, they still always try to show as much of their personalities to us as they can, by being themselves and not being afraid of people judging them.
If they feel like goofing around, they goof around.If they feel like showing some of their iconic derp faces, they show their derp faces.
If they feel like crying, they cry.