It is clear that celebrities are doing advertising for a reason, and I am sure that it is not because they have fallen in love with this or that coin. They are offered to cooperate for a certain amount, and from their side: why not, it is very clear. Many people want to psychologically introduce their ideas into people's minds, so they use advertising principles such as the "halo effect", with the help of which they act on customers. Celebrities of a kind are in advertising terminology, "icons" for people, and those who are fan of them will follow them, and this is a fact.