"Run" is a song recorded by South Korean boy band BTS as the lead single for their fourth extended play, The Most Beautiful Moment in Life, Pt. 2 (2015). The original Korean version was released by Big Hit Entertainment on November 30, 2015, in South Korea. The Japanese single version was released on March 15, 2016, under the Pony Canyon label.

The Most Beautiful Moment in Life, Pt. 2 is the fourth extended play (EP) by South Korean boy band BTS. It was released on November 30, 2015, by Big Hit Entertainment. Available in two versions, the EP comprises nine tracks, with "Run" as its lead single.