K-pop band BTS made a unique pitch for Covid-19 vaccination, the youth and the health of the earth in a speech before the United Nations General Assembly.

Addressing the stage for a sustainability event, the seven-member musical juggernaut appeared before the renowned green-marbled backdrop in the General Assembly hall on Monday to help promote U.N. goals for 2030 including ending extreme poverty, preserving the planet and achieving gender equality.

“Every choice we make is the beginning of change, not the end,” said RM, the band’s leader.

South Korean President Moon Jae-in introduced the pop stars as special presidential envoys and an “exceptionally outstanding group of young men who are connecting with the youth across the world.”

The gravity of the moment wasn’t lost on the musicians standing before world leaders and U.N. Secretary-General Antonio Guterres. Nerves were evident when band member Jimin stumbled over his words while talking about young people trying to navigate the pandemic. Jimin apologized before taking a breath to recollect himself. It was a moment that prompted the “BTS ARMY” of fans to rally behind him in a show of support on social media. The artists took turns on stage during their seven-minute speech.

But it wasn’t all about U.N. goals. The group also unveiled a new music video for its current hit single “Permission to Dance,” which was filmed at U.N. Headquarters in New York. The singers crooned, “Don’t need to talk the talk, just walk the walk,” while dancing their way from the General Assembly hall to the garden overlooking the East River.