5. Fall Out Boy
When Fall Out Boy went on hiatus in 2009, they were in pretty rough shape. The emo scene was rapidly dying and Pete Wentz's endless tabloid drama was completely overshadowing the group. Factor in the relative failure of their 2008 LP Folie à Deux and you've got quite a formula for Fall Out Boy backlash. There's also the simple fact that a young rock band that appealed to a hugely female audience was always bound to have a lot of haters. Their 2013 reunion was more successful than anyone expected but, clearly, the haters haven't gone away.