Amanda BynesWoah! Just when you thought Amanda Bynes couldn't do anything else to shock us, here she goes yet again. Today, for no apparent reason, she unleashed on singer Rihanna in a vicious Twitter attack.

TMZ captured pictures of the inexcusable tweets, which have since been deleted. In one she wrote: "@rihanna Chris Brown beat you because you're not pretty enough."

WTF?! Besides the fact that Rihanna is gorgeous, insinuating that women are beaten because of their looks, and that it's okay, is just mind-numbingly awful. That wasn't all either.

According to the Daily Mail, it actually started with another offensive tweet that read:

@rihanna you look so ugly tryin to be white.

Another stated:

@rihanna No one wants to be your lover so you call everyone and their mother that I almost named my new dog Rihanna.

Amanda quickly deleted the tweets but not before plenty of people saw them ... including Rihanna herself, who got the last laugh. Her awesome comeback:

Ya see what happens when they cancel Intervention?

Bam. Good for Rihanna, but of course, Amanda couldn't just walk away from the mess she made then. She had to get in one last tweet:

@rihanna unlike ur fugly faced self I don't do drugs! U need the intervention dog! I met ur ugly face in person! U aren't pretty u know it!

So what's her beef with Rihanna? No one is really sure. It's not like they've had an ongoing feud or anything. Some suggest it may be due to the fact that Amanda has a thing for rapper Drake, Rihanna's collaborator and rumored ex-boyfriend, but it may just be like her other bizarre behavior as of late -- totally random.

More than anything, it seems Amanda is just begging for attention, and for somebody to do something to help her. Sadly unless she officially asks for help it doesn't sound like that's going to happen until she does something even more horrific. I'm honestly scared to see what that might be.

Why do you think Amanda Bynes attacked Rihanna like this?

 

Image via Amanda Bynes/Twitter