Credit: Bryan Bedder/Getty Images for SWAROVSKI ELEMENTS Photo: Rihanna Performs During the 2012 Victoria’s Secret Fashion Show: Pretty in Pink

Out of nowhere, Amanda Bynes began railing against Rihanna on Twitter Sunday, providing her believed reason for Chris Brown beating the singer.

Amanda tweeted — then quickly deleted — "@rihanna Chris Brown beat you because you're not pretty enough."

She followed that up (and deleted) this: "@rihanna no one wants to be your lover so you call everyone and their mother that I almost named my new dog Rihanna."

This attack seriously came out of nowhere. 

If you are feeling bad for Rihanna, don't. The Barbadian singer got the last laugh, sending out the BEST DISS EVER. 

Seriously, y'all. Do not mess with RiRi. Check out her response:

Amanda responded to that (and, of course, deleted): "@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!"

And thus ends the most random Twitter war ever.

Source: TMZRihanna on Twitter

Credit: YouTube Photo: Listen! Rihanna and Chris Brown's "Nobodies Business"