If they killed my family. Even then, I would love them for all enternity.

If she became like the other white female pop stars. Lip syncing and crap. I don't know how anybody stans for the others. If they aren't talented they're liars or fake or whatever.

If I haven't stopped stanning for Britney by now then there's nothing that can make me

With Avril, ddefinitely if she went away too much from her pop-rock roots, like making full-on pop record, or EDM. In general, if she stopped doings things that "gave me life", like someone said above. I went through things I disliked, like her 3rd album/era or the infamous Hello Kitty, but anything can happen, I suppose. I hope it doesn't, though, and I like future music efforts enough to keep stanning

Bad and uninspired music, lipsyncing every performance and stagnation. Also racism, but most of my main faves are black so it's not really a worry.

Being ungrateful, and being unnecessarily hateful. Her personality, wisdom, and loving nature is one of the many attributes that mean the world to me, it connects the music and relationship with her fans in a unique way that I've never saw in any other artist.

If they were ignorant and/or racist. Or if their music was simply not good anymore.