WATCH: Nancy Pelosi booed at Global Citizen concert in New York City

A video appears to show House Speaker Nancy Pelosi (D-CA) being booed onstage by the crowd in a surprise guest appearance at a music festival.

During the Global Citizen Festival at Central Park in New York City on Saturday — featuring the Jonas Brothers, Usher, and Metallica — actress Priyanka Chopra Jonas introduced Pelosi to talk about pollution and climate change, according to the New York Post. The audience apparently didn’t warm up to the surprise, with loud boos being heard in videos of the moment.

“As speaker of the House, I am here to thank you for your dazzling advocacy, entrepreneurial thinking, and determination as global citizens,” she said. “It’s thanks to your help that the United States recently enacted historic climate legislation, which will be a game changer. It will slash carbon pollution by 40% by 2030; it will give a historic $370 billion to fight the climate crisis.”

Pelosi concluded her remarks, shrugging off the hecklers, by giving shout-outs to her grandchildren Paul and Thomas in the audience, saying that she agreed to keep her comments at a minimum so as to allow the show to continue as quickly as possible.

Despite the chilly reception, Global Citizen tweeted out its appreciation for Pelosi’s appearance.

“Thank you @SpeakerPelosi, for recognizing Global Citizens all around the world who took action in support of the new, historic climate legislation in the US!” the account tweeted.

The heckling of Pelosi wasn’t the only viral awkward encounter of the festival. Another video showed the confused reaction of audience members when singer Mariah Carey brought up 9/11.