Eli5: how do celebrity owned brands work?

Question

From my information most celebrities have no idea or credibility about formulating their own products like makeup or clothes, celebrity owned brands like skims, rare beauty, fenty beauty are getting popular year by year and making these people billionaires even though they don’t seem to have any former degrees in cosmetology or fashion nor any former knowledge on business so how are they made and why do they become so popular?

In: Economics

Answer 1

celebrity makes deal with someone who makes cosmetics or fashion and ask them to make something for them and put the celebrity’s name on it, then add lots of marketing and people start buying because they fall for it