Kelly Osborne needs to shut it.

Here’s how NOT to win over fans or friends. So, from what I can gather, Kelly Osbourne still is mad that Christina called her fat years ago, and so now, in true adolescent fashion…she’s going to try to do the same. Now, I’m not sticking up for Christina’s crappy comments a while ago…but I’m just saying that Kelly saying this stuff now, makes her look like an enormous jerk. THIS, my friends, is why women hate each other.

According to The Daily Mail, this is how it went down:

On a previous episode of the E! commentary show[ Fashion Police], Ozzy Osbourne’s daughter had also attacked Christina Aguilera’s size. ’Maybe she’s just becoming the fat b***h she was always born to be. I don’t know. She was a c*** to me’, she said. ’She called me fat for so many f***ing years,” Osbourne vented, ‘so you know what? F**k you! You’re fat too.’

Can’t we just be nice to each other? I know, it’s a lot to ask…but gheesh…let’s stop being children.

See…I’m going to be the better person. I mean, I could say something about your past use of make-up…but I’m far too cool for that.