if you are good friends with them tell them that the worst concert i have ever been to was them =) it was 2 months before 'say hello to sunshine' and the entire 12 song playlist consisted of 1 song that people knew from 'what it is to burn' and the other 11 were from 'say hello to sunshine', an album no one had yet to hear. i have never seen a crowd so bored.
The band was over the sound of WIITB and wanted to show their new sound. Was it selfish? Yes. Was it smart? No. Can they do that? Of course. Its understandable IMO but definitely not fair to the fans.
Its like the equivalent of an actor being typecast and desperately looking for roles that are outside that.