Cop out answer, but most of them. It's not necessarily that they're born ugly... I don't get the way that they style celebs. The obvious plastic surgery, emphasis on sharp features, piles of makeup, distasteful perv-pandering outfits, harsh lighting, and general attitude surrounding them makes me wonder if they're trying to make them look as witchy and uncanny as possible. Dunno how to describe it exactly but so many pictures of them end up with this eraserhead baby or lich vibe. But when you see pictures of the same people from before they made it big, or even just unstyled and doing normal things, they look completely fine, so it's not genetics. It's a weird choice that was made somewhere along the way. Maybe it's the stressful lifestyle too?
I guess it's just hardcoded in my blood or something but I find East Asian aesthetics to look better on average, though idk many of their celebs. I really prefer the stylistic emphasis on looking pretty/cute over the Western preference for a severe-looking bold "sexy" look which just comes off as grotesque or sinister a lot of the time. East Asia goes even harder on the uncanny plastic surgery however and can be more overt about the pedo stuff, so I'm not praising them either.