What kind of make-up do celebrities use?

you can just name a few brands, like foundations and facial creams etc...What kind of make-up do celebrities use?
To be honest, they use everything ranging from high end to low end brands... e.g. MAC, L'Oreal, Revlon, Chanel, NARS, Maybelline...there aren't any specific brands that only celebrities use.What kind of make-up do celebrities use?
Mac