What is the number one  foundation makeup artists are using for TV events on Celebrities?

I love these 2 products -TV Paint Stick | Kryolan or Eve Pearl.

there is NO #1 product for celebrity grooming .....this is totally subjective to the celeb .....personally i use Face Atelier alot but some love Chanel , some love armani .....for my my actors of color, some like Black opal , others like black up or Danessa Myricks .........its really up to the actor , and they will tell you
i also love eve pearl as well     it just depends