Previously ICO's are good to invest especially when some celebrities are getting involved to promote their investment. but as the time pass by, Its getting sour because most ICO's this days are scam, You had to scrutinize carefully the ICO before you can find a trustworthy project:)
That is the last thing you really want to be focusing on when it comes to investing in ICOs. Celebrity endorsement is just basically some level of publicity stunts and nothing else and if you are really smart, those are the things you want to care less about and focus on the product, the team and the prospect of the coin you want to be investing in. If Centra project (CTR) was not good enough as an example for you as to the reasons why celebrity participation in a project does not mean a thing, then I wonder what else will.