It all comes from that celebrity mind set of having delusions of grandeur.
They’ll have their little gig - and we’ll hear them whine after a few months or a few years that no one listened to their “message” (as they continue to charter jet planes and buses - and buy several air conditioned mansions)
AlGore's sycophant bands aren't really rock and roll, and aren't worth listening to, either for their music noise, or their eco-message.
The only people that will be inspired with this insipid bunch have no decent sense of music OR grasp of science.