I beg to differ klifford.
There may be even a small percentage of people who might get actually influenced by celebrities who are considered credible. And i consider Springsteen to be as credible as anyone. At the end of the day, these celebs are also citizens who have a right to voice their opinion. Great music has always made people think and question the times they are living in- Dylan, Fogerty, Springsteen, maybe Neil Young,Seeger....Even in their music their politics was pretty much evident and if they feel they have a service to render, so be it. Those who get put off by Springsteen or any such celebrities can always stay away from them

Also, as a non American... from far off india... if i can be honest, it is guys like Springsteen who remind us all that is great about America and not the politicians who somehow make America look like big bully who is only interested in it's own interests