Amanda Bynes NewTwitter Victim! Fires Back At Chrissy Teigen After She Tweets Concerns For Bynes; Slams Rihanna So Who's Up Next?

Chrissy Teigen is the latest celeb Amanda Bynes fires back to on Twitter, after the model tweets concern for the well-being of Amanda and the followers who encourage her online. Amanda Bynes was not happy with the Teigen tweets implying mental illness and fires back at her on Twitter. After insulting tweets to Rihanna, who's Amanda's next twitter victim?

Chrissy Teigen tweets on her Twitter page:

"The fact that Amanda Bynes has any 'support' to retweet is really unsettling."

She went on to explain, "Support people with mental illness, yes. But don't condone/enable scary and poor behavior."

Bynes, not surprisingly, took serious issue with Teigen's comments, and fired back a lengthy response on Twitter:

@chrissyteigen Ur not a pretty model compared to me. I signed to Ford models @ age 13. I don't look up to u beauty wise. I'm far prettier than u! I'm offended that you're saying I have a mental illness when I show no sign of it, but thankfully not one man that wants me wants you and you are an old ugly model compared to me! You look 45! You're not pretty so I'm not intimidated by you! I think you're jealous that you're just an ugly model whos career is uninspiring! I don't respect you! You're no beauty queen! I'm a beauty queen!

Teigen, who is engaged to John Legend, opted not to reply, simply writing, "Nope. Not going to indulge. Wish the best for her, truly," and then urged her own followers to abstain from chiming in, too.

"Don't, guys. Just don't," she wrote, adding, "I never ask anything of you guys but please. I don't need defending and please stop writing her. It's not funny, it's sad."

The twitter feud with Teigen comes one day after the brutal Tweet war with Rihanna filled with surprising low blows.

Amanda blasts Rihanna calling her ugly in tweets that were later deleted.

Amanda even tweets she's glad Rihanna got beaten up by Chris Brown? The twitter war between Amanda Bynes and Rihanna comes out of nowhere. So ladies...what's the beef about?

Amanda tweets on Twitter:

"@rihanna Chris Brown beat you because you're not pretty enough," she posted in a deleted message on her Twitter account. E! Online has the screenshots of the original posts.

The actress went on to criticize Rihanna. "@rihanna no one wants to be your lover so you call everyone and their mother that I almost named my new dog Rihanna."

While the Tweets have since been deleted, Rihanna was insulted by Bynes' rant. The 25-year-old singer posted a cryptic message on her account moments after Byne's rude comments, which was not addressed to anyone in specific.

While the singer didn't mention Bynes' Twitter handle in her Tweet, the actress took the message personally, posting: "Ya see what happens when they cancel Intervention?"

Amanda didn't like those comments firing back, "@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!"