Nickelback is so hated as a band that they've almost become a standing joke. We could have included frontman Chad Kroeger on this list, but that would be doing him a disservice; the entire band is equally loathed. Their middle-of-the-road rock anthems with trivial lyrics are responsible for the hatred, with 'Rockstar' being the worst offender. Writing 'She Keeps Me Up' about cocaine and then confessing nobody in the band had ever taken cocaine might qualify as the least rock-and-roll thing in the history of the genre.
Nickelback wouldn't be in the position to be hated if there weren't people out there buying their music, though. Despite all the negativity directed at them, they keep making music, and people keep buying it. Also, if you try to tell us that you haven't occasionally listened to 'How You Remind Me' when you're sure that nobody's watching you, we're going to have to call you a liar.