It looks like Amanda Bynes has gone on one of her crazy Twitter rants again, this time attacking Rihanna. The former Nickelodeon star has had an eventful week following her arrest on Thursday in which she allegedly threw her glass bong out of the window of her apartment on the 36th floor.

On Sunday, Bynes took to her Twitter account to bash the "Diamonds" singer and brought up her infamous 2009 beating by ex-boyfriend Chris Bown.

The first tweet the 27-year old wrote was, @rihanna "You look so ugly tryin to be white."

She then went on to tweet, "@rihanna Chris brown beat you because you're not pretty enough."

One minute later Bynes tweeted, "@rihanna no one wants to be your lover so you call everyone and their mother that I almost named my new dog Rihanna."

The New York Daily News alleges that Bynes may be have an issue with Rihanna, who had been romantically linked to rapper Drake.

The former actress (or actress, depending on the day) has confessed her love for the rapper in the past, even as going as far as saying she wanted him to "murder" her private parts.

After the continuous Twitter, Rihanna briefly responded to Bynes, she tweeted, "Ya see what happens when they cancel intervention?"

The response set Bynes off once again to which she tweeted, "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!"

Bynes has since deleted the tweets off her account. Since then, she has been tweeting regularly and has yet to bring up the Rihanna incident.

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