Fall Out Boy plays to half the house

My sources tell me that Fall Out Boy at The Bradley Center was half-full. They closed off the entire 400 level, and still there were seats available in the lower reserved. What's up with the huge number of opening acts? That source I mentioned said she "waited a lifetime"for Fall Out Bot to start playing their set. Who could fill the Bradley Center today? Roger Waters, The Police, possibly Jimmy Buffett, but a modern show, I doubt anyone could manage that feat.

My guess is that Fall Out Boy will be playing The Riverside Theater next year. The fans are growing up fast.