The "Super Bass" singer posed for a picture with former American Idol judge Jennifer Lopez at the Costume Institute Gala in New York City on May 6. She then posted the photo with "#notthatwegiveafuckbutwheresM?"
The M, it seems, is referring to Nicki's arch-nemesis, Mariah.
This isn't the first time Nicki has taken to social media to show her hate. She recently dissed Mariah not long after rumors started spreading that Jennifer was going to return to Idol.
"All dem #1s but JLo phone ringin? Lol. I guess having a personality, being a secure woman, and giving genuine critique still trumps that," tweeted Nicki.
Are you Team Nicki or Team Mariah in this war of the divas? Tell us in the comments section or on Twitter @OKMagazine