"2 Baddies" (Korean: 질주; RR: Jilju; lit. Speeding) is a song recorded by South Korean boy band NCT 127. It was written by Sokodomo, Haeil, and Xinsayne, while production was handled by Aron Bergerwall, Louise Lindberg, Tony Ferrari, Parker James, Cazzi Opeia, Ellen Berg, and IMLAY. Described as an "intense hip-hop dance song", it features lyrics about achieving success by running towards one's goal regardless of the judgment of others. It was released as the lead single from their fourth studio album of the same name on September 16, 2022 by SM Entertainment. An accompanying music video was released a day prior.