There is a charity drive being organized by fans of an (non-Muslim) artist to mark his birthday. The money will go to a fund to which he previously expressed his support, that is run by Muslims and that builds schools and promotes education in many countries (Mostly Muslim ones).
I'm a bit of a fan myself, but I'm only interested in taking part in the organization of the campaign because of the fund the proceeds will go to. The people who are donating are both Muslims and non-Muslims (and are willing to donate a lot).
I know that it is allowed to accept money from non-Muslims for charity fundraisers, but I am not sure if it's okay to do it in the context of a celebrity's birthday charity drive! Is it?