I don't see why they wouldn't still be successful, it used to be *VERY* common for members of a band to be replaced. LEAD SINGERS have been replaced in the past, too. And the bands have still been very successful. I think generally, most of us listen to and love Paramore because of Hayley. She's the vocalist, songwriter, etc. If she were to leave, then yeah, it'd become a meaningless flop, but as long as Hayley is a part of the band, I'm going to continue to love and support their music.
Anyway, I'm glad they found replacements. While I loved Josh and thought he was adorable, it must have been really awkward considering his past relationship with Hayley and the fact that he just recently got married. Plus, I could kind of sense over the past year or so, that Josh and Zac weren't as into the band as they used to be. So I can understand why they left. I just hope Paramore continues to be successful and there are no hard feelings.
