Rihanna and Amber Rose Pose for Sassy Backstage Instagram Shoot

"Bad galz do it well," RiRi wrote after the pair caught up at her show in Anaheim, Calif.

And, werk.

Rihanna and new-mom pal Amber Rose showed the camera some love Tuesday night when they had a little impromptu photo shoot for their Twitter and Instagrams (as we all sometimes do) while backstage at Ri-Ri's Diamonds World Tour concert in Anaheim, Calif.

"Bad galz do it well! Miss @muvarosebud came thru and shut down backstage in this sick polka dot moment!!!," the Unapologetic singer wrote.

Rose posted a similar flick and captioned it, "Chilled wit tha baddest bitch @badgalriri after her show tonight she killed it as usual ;-)"

(Just to note, once again: Amber Rose and Rihanna perceive themselves as "bad.")

Chris Brown—a persistent regular on the Rihanna circuit—visited the performer backstage at her L.A. show on Monday. "He got out and went to the tour bus," a concertgoer told E! News. "I saw him knock on the door, go in for 10 seconds, and come right out."

Clearly not enough time for a photo sesh, but Breezy and Ri-Ri made up for it later.