DJ Khaled and Mayweather had an issue about shilling an ICO. And other celebrities hyping or promoting scam coins. Who would actually rely on their words? If you're listening to celebs then you are not ready for this type of market at all.
rarely are artists who have an interest in blockchain or crypto technology as investment, trade or virtual currency types. so I'm not sure, because in most cases, celebs are only paid to promote to attract a lot of interest from new investors