Oh gurl. We warned ya.
Biebs fans never fail to disappoint us.
One fan tweeted:
"@selenagomez dont touch @justinbieber you are a b!tch i kill you selena stupid stud you always whit famous boys you are a very very b!tch"
If you're gonna dish out some death threats, a little spell and grammar check might be a good idea.
Get some protection, Selena! Bieber fans are scary!
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[Image via WENN.]