"A voice in my head told me to delete my Twitter, and that's what I did."

The recording artist, who has previously vented to President Obama over Twitter, appears to be endorsing his GOP rival on a new track.

Is Nicki Minaj voting for Mitt Romney?

The rapper-singer, who is nearing a deal to become a judge on Fox's American Idol, gives what appears to be an endorsement of the Republican presidential nominee on Lil Wayne's Dedication 4, the recently released fourth installment in his mixtape series.

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During an instrumental on "Mercy," the fifth track on the album, Minaj raps: "I'm a Republican voting for Mitt Romney, you lazy bitches are f---ing up the economy." (Listen to the track below.)

RapDose, which first pointed out the lyrics, noted that her rap was performed over Kanye West-produced beats; West attended the 2008 Democratic National Convention in Denver in support of President Obama.

Minaj has previously vented to Obama over Twitter, including messages expressing her frustration with U.S. healthcare in June on the heels of Moesha and The Parkers actress Yvette Wilson's death from cervical cancer. Before her death, Wilson's friends and family had been trying to raise money online to cover her medical costs.

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“What’s sad is that when Yvette was bringing home the bacon, the gov’t was probably taking millions. On her deathbed though, #Nowheretobefound,” she wrote. “That should be a God given right! Even with Obama Care, too much involved. Just give FREE health care to all. @BarackObama what can we do?”?

She added: "@BarackObama I wouldn’t mind the millions they took if it was going to healthcare. Why should a poor person struggle to pay for MEDS sir?"?