The music video of "Dance the Night Away" was filmed on an
Okinawa beach in early June 2018. The full music video was uploaded online on July 9. It features the nine members of Twice as castaways who wash up on a beach. It also ranked seventh on the 2018 YouTube Rewind list in the category for the 10 Most Popular Music Videos in South Korea. A few hours after the release of the song, Twice held a live broadcast on
Naver V Live to commemorate their comeback, where they also performed the full choreography of the song for the first time. The group also performed "Dance the Night Away" for their comeback stages on
Music Bank,
Show! Music Core,
Inkigayo,
Show Champion and
M Countdown on July 13, 14, 15, 18 and 19, respectively. ==Commercial performance==