Rihanna and Ciara went head to head last night via the social networking site, Twitter.

Apparently during CiCi’s guest appearance on E! Fashion Police, she said some not so nice things about Rih-Rih’s attitude that didn’t sit so well with the Bajan princess, sparking the following response:

And yes… you already know Ciara responded!

Check out Rihanna & Ciara’s back & forth diggs PLUS watch video of what started it all below:

POW!  You’ve got to admit that Rihanna totally won that battle! The two must have eventually spoken offline because later it wall all hearts & roses between the two as they publicly made up.

Here’s the video of Ciara speaking about her run in with Rihanna that started it all:

“I ran into [Rihanna] recently at a party and she wasn’t the nicest and it’s crazy because I’ve always loved and respected what she’s done with fashion,” the singer said while speaking with Joan Rivers.

“I’ve ran into her before, but this time, it wasn’t the most pleasant run-in.”

Immediately after, Rivers chimes in. Calling Rihanna “a bitch!”, as Ciara laughed and responded, “You crazy.”

I really don’t think CiCi meant any harm and she certainly didn’t say anything THAT bad. Rihanna must still be salty about old sh*t.

Here’s more footage of Ciara from the show:

VIDEO: Ciara on E! Fashion Police