Cardi B returned to the stage on Saturday for the first time since giving birth to her daughter in July and got political ahead of the 2018 midterm elections by introducing former first lady Michelle Obama to the crowd at the 2018 Global Citizen Festival.

The rapper performed her hit songs “Bodak Yellow” and “I Like It” at the event in New York’s Central Park, but took some time to tell the thousands of people in attendance that they need to go out and vote.

“Last election, everybody took it as a joke, even me, I’m not even gonna front, because I thought, ‘Man, that person ain’t going to win.’ And look where we at now,” she said.

The star introduced Obama, who appeared in a video message, to the crowd.

“No matter what issues you’re passionate about, no matter what causes you’re fighting for, there’s one thing all of you can do that I guarantee will make a difference,” said Obama. “And that is electing leaders who share your values and will stand up for you in the halls of power.”

Obama encouraged the crowd and those watching at home to register to vote ahead of the midterm elections as part of the nonprofit voter turnout initiative When We All Vote.