Selena Gomez
When I was like 12

I don't hate her though, I don't think she's harmful at all. But I just don't really respect her as an artist.
Taylor Swift -- I was a fan but not a stan.
Justin Bieber. When those racist videos leaked, that was honestly the last straw for me.
I liked Iggy Azalea until I found out what she really was like...
EDIT: Justin Timberlake. What he did to Janet was unforgivable