"Knock Knock" (stylized in all caps) is a song recorded by South Korea girl group Twice for their special album Twicecoaster: Lane 2 (2017). The song was released by JYP Entertainment on February 20, 2017, as the album's lead single. It was written by Shim Eun-jee, Lee Woo-min "Collapsedone", and Mayu Wakisaka.
Knock Knock has been suggested to play 2 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
