Knock Knock

Knock Knocks (and some Ttok Ttoks)! More videos like this: List of songs in order of appearance: Mamamoo - Decalcomanie Twice - Knock Knock Lovelyz - Knock Knock Wonderboyz - Open The Door Blady - Secret Number Topp Dogg - Open The Door Oh My Girl - Knock Knock Bastarz - Nobody But You CLC - Hobgoblin BTS - Cypher 2 Gu Hara feat. HUR Youngji - How About Me Monsta X - Calm Down Taemin - Drip Drop IOI - Knock Knock