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.
I totally agree with this. Promoting the ICO using the popularity of the celebrity is very effective for advertising especially if that celebrity is well known and also have good investments in cryptocurrency. As well as manny pacquiao when he fight he uses the logo of the ICO to promote and thats the thing why it is good.