Troubled U.S. actress Amanda Bynes focused her latest Twitter rant on Rihanna, criticizing the Barbadian pop star for being "so ugly tryin to be white."

"@rihanna you look so ugly tryin to be white," Bynes tweeted in a message she deleted two minutes
later Sunday, X17 reported.

"Chris Brown beat you because you're not pretty enough," Bynes
said in a later online message.

She also re-tweeted a post by Rihanna that read: "'Look who came to see me!! My lover Stella
McCartney!!!," to which Bynes replied, "No one wants to be your
lover so you call everyone and their mother that I almost named my new dog Rihanna."

X17 said Rihanna responded to the online insult with her own Twitter message. "Ya see what happens when they cancel Intervention," she said.

"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 wrote.

Bynes, 27, is the former star of TV's "The Amanda Show" and "What I Like About You" and the films "What a Girl Wants" and "Hairspray." Her once-bright career has been eclipsed in recent months by reports of erratic behavior, bizarre online rants and
motor vehicle offenses.

She was arrested last week in New
York for allegedly throwing a bong out of her 36th-floor apartment window while police were in her home investigating a complaint that she was smoking marijuana in the building lobby.

Bynes later accused one of the police officers of sexual harassment, saying on Twitter he "slapped my vagina."

The matter is under investigation.

source: http://www.ibadancityupdate.com/2013/05/amanda-bynes-attacks-rihanna-on-twitter.html

Her tweets are pathetic.Some women can be so nasty when they are jealous.Go get a life madam Bynes.

Used to love the Amanda show. That was early in the millenium tho...
Eyaaa... But why is she taking her frustrations out on Riri na? She isn't a cause of her dwindling career and last I checked, Riri was still as pretty if not prettier than Miss Bynes or whatever that her name is!