it is highly possible that a celebrity, which eats on restaurants that have fresh food and know how to play instruments are high IQ, specially because their minds are really clear because of all that 14h/daily sleep.
the issue is, just because you have high IQ it doesn't mean that you used your mental faculties to apply to socio-economical and historical grounds and more like you used to be a dancing monkey and spill the most non-sensical garbage known to man due to your mind being clear from schooling since they were born already in masonic-semitic pedo rings where they didn't even have to learn anything else besides playing instruments.
are they really that high IQ? why can't she play rober schumann on the piano? no...
so her one job is to play piano, dance and sing and she isn't incredible in any of it, she only did it in her life and yet, we don't see her work being relevant...
I'd say they are next to 100 IQ because if you think about the amount of brain space they had and they are stupid as fuck...