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.
No no no no no no no no and no. I would not listen to a celeb endorsing a coin unless it was Mr. Wonderful. Look at McAfee predicting and promoting BTC's price. He's on track to eat his own dick by 2020.
https://diegorod.github.io/WillMcAfeeEatHisOwnDick/