It seems Nicki Minaj has something special up her sleeve.

On Tuesday night, the Queen rapper released a snippet of a slow-burning track in which she is heard repeatedly singing “yeah.” The clip eventually began circulating on Twitter, prompting Nicki to reveal she was working on new music, but needed some help from R&B stars. She called on her fans to reach out to Keke Wyatt, Tamar Braxton, or Brandy, as well as younger artists such as Summer Walker, Kehlani, and Jhené Aiko.

“Barbz: ask Keke, Tamar & Brandy to redo this,” she tweeted. “That’s what I sound like in my head. Would love to hear ppl who can rlly do it [...] Summer, Jhené & Kehlani can be good in the blend as well with their harmonies.”

Khelani caught wind of Nicki’s tweets, and asked for more clarification. Nicki then explained she was “challenging” the six artists to record a cappella; she will then take the vocals and put something “special together.”

She went on to clarify her use of the word “challenge.”

Summer was seemingly intrigued, and said she would “love” to be involved.

It’s unclear what Nicki plans to release, but indicated she will do something similar with her fellow female rappers.

Stay tuned.