On the morning of October 22nd (Korean time) morning, Aespa participated in the 2021 U.N. Day Celebration New York Cultural Performance. Broadcast on the U.N. official channel U.N. WebTV, 'Ministry of Foreign Affairs' YouTube channel, and SBS Medianet YouTube channel THE K-POP, captured the attention of global viewers with a specials stage.

Aespa not only performed their debut song 'Black Mamba,' they performed a new version in collaboration with the orchestra. Aespa also fascinated music fans around the world with their intense performance on the stage of their last single 'Next Level.'

The cultural performance was the first cultural event held at the U.N. as of the 76th U.N. General Assembly's high-level week in September, with a large number of world-renowned musicians including Espa, violinist Angela Jeon, Jennifer Jeon, vocalist Kim Young-mi, pianist Yoo Young-wook, Goyang Philharmonic Orchestra, and vocalist Shin Young-ok.