Red Velvet

“Knock Knock (Who’s There?)” by Red Velvet is a moody dance song from their 2023 Chill Kill album that explores the dizzying, bittersweet sensation of chasing a complex, tempting romance. It emphasizes themes of obsession, curiosity, and entering a dreamlike, high-stakes game of pursuit, often featuring a mysterious, “devil-on-my-shoulder” feeling.

Song Credits

  • Artist: Red Velvet
  • Album: Chill Kill
  • Released: Novemver 13, 2023
  • Length: 3:22
  • Label: SM Entertainment
  • Lyricists: Cho Yun Kyoung
  • Composition: JINBYJIN, Moa “Cazzi Opeia” Carlebecker, Ellen Berg

Red Velvet “Knock Knock (Who’s There?)” Official Audio

Red Velvet “Knock Knock (Who’s There?)” Lyrics

Hangul

닫혀진 문 바람 소리
또 나부낀 Curtain 너머 눈빛
아찔한 꿈 (Get the clue)
뒤덮인 Bed (Feel like a trap)
새벽안개 (Deep inside)
다시 열린 Our playground

창문 너머 낮과 밤이 바뀔 때
깊어지는 외로움은 Walking dead
자꾸 더 궁금해 (I wanna play)
짙은 어둠이 내려 네게 이끌어

시선마다 거울처럼
아른대는 너의 실루엣이
내게 이어진 순간 Watching me

Knock knock Open up the door
계속 서롤 찾아 헤매이는 Game
점점 빠져들어가
It’s so bittersweet
But I like the chase

Got a devil on my shoulder
작게 속삭이는 Voice
Like an angel 다가와 넌
또다시 시작되는
Knock knock Who’s there?

난 너와 함께인 걸
서로를 느끼고
흔적을 남기고 (Close)
또 쫓고 쫓겨
밤새 (Run away)
방심한 틈에
When I shoot out I’m fallin’

Bibbidi bobbidi boo eyo
I swear to ya
더 깊이 몰아가지
Can’t sleep at night
나른해지는 기분 Eyo
This spell got
Got me trippin’ and I like it

눈을 감아 Shine and shiver
예측할 수 없는 너의 Timing
알아챈 순간 이미 Watching me

Knock knock Open up the door
계속 서롤 찾아 헤매이는 Game
점점 빠져들어가
It’s so bittersweet
But I like the chase

Got a devil on my shoulder
(Right here)
작게 속삭이는 Voice
(Listen to you)
Like an angel 다가와 넌
또다시 시작되는
Knock knock Who’s there?

W-wow
문을 연 순간 또 다른 Door
N-now
난 네 맘을 더 어지럽혀
My heart
들어올수록 You want it more
(Knock knock?)

Knock knock Open up the door
벗어날 수 없는 너와 나의 Game
점점 깊이 유인해
It’s so bittersweet
But I like the chase

Got a devil on my shoulder
달콤하게 웃는 Voice
밤새도록 돌고 돌아
넌 내 꿈에 갇힌 채
Knock knock Who’s there?

Knock knock?
Devil? Angel?
Knock knock Who’s there?

Romanized

Oh-oh-oh, oh
Oh-oh-oh, oh
Oh-oh-oh, oh, oh-oh-oh
Oh-oh-oh, oh
Oh-oh-oh, oh
Oh-oh-oh, oh, oh-oh-oh

Datyeojin mun baram sori
Tto nabukkin curtain neomeo nunbit
Ajjilhan kkum (Get the clue)
Dwideopin bed (Feel like a trap)
Saebyeogangae (Deep inside)
Dasi yeollin our playground
Changmun neomeo natgwa bami bakkwil ttae
Gipeojineun oeroumeun walking dead
Jakku deo gunggeumhae (I wanna play)
Jiteun eodumi naeryeo nege ikkeureo

Siseonmada geoulcheoreom
Areundaeneun neoui silluesi
Naege ieojin sungan watching me

Knock-knock, open up the door
Gyesok seorol chaja hemaeineun game
Jeomjeom ppajyeodeureoga
It’s so bittersweet but I like the chase
Got a devil on my shoulder
Jakge soksagineun voice
Like an angel dagawa neon
Ttodasi sijakdoeneun
Knock-knock, who’s there?

Nan neowa hamkkein geol
Seororeul neukkigo
Heunjeogeul namgigo (Close)
Tto jjotgo jjotgyeo bamsae (Run away)
Bangsimhan teume
When I shoot out, I’m fallin’
Bi-bi-di, bo-bi-di, boo, ayy, oh
I swear to ya
Deo gipi moragaji, can’t sleep at night
Nareunhaejineun gibun, ayy, oh
This spell got, got me trippin’ and I like it

Nuneul gama shine and shiver
Yecheukal su eomneun neoui timing
Arachaen sungan imi watching me (Hey, ayy)

Knock-knock, open up the door
Gyesok seorol chaja hemaeineun game
Jeomjeom ppajyeodeureoga
It’s so bittersweet but I like the chase (It’s so bittersweet)
Got a devil on my shoulder (Right here)
Jakge soksagineun voice (Listen to you)
Like an angel, dagawa neon
Ttodasi sijakdoeneun
Knock-knock, who’s there?

W-wow
Muneul yeon sungan tto dareun door
N-now
Nan ne mameul deo eojireopyeo
My heart
Deureoolsurok, you want it more
Knock-knock (Yeah)

Knock-knock, open up the door
Beoseonal su eomneun neowa naui game (Eh-eh)
Jeomjeom gipi yuinhae
It’s so bittersweet but I like the chase (Oh)
Got a devil on my shoulder
Dalkomhage unneun voice (Oh)
Bamsaedorok dolgo dora
Neon nae kkume gatin chae
Knock-knock, who’s there?

Oh-oh-oh, oh
Oh-oh-oh, oh (Knock-knock)
Oh-oh-oh, oh, oh-oh-oh (Ah)
Oh-oh-oh, oh
Oh-oh-oh, oh (Devil? Angel?)
Knock-knock, who’s there?

Translation

Oh-oh-oh, oh
Oh-oh-oh, oh
Oh-oh-oh, oh, oh-oh-oh
Oh-oh-oh, oh
Oh-oh-oh, oh
Oh-oh-oh, oh, oh-oh-oh

The sound of the wind, a closed door
Your gaze is drawn behind the slightly opened curtain
A dizzying dream (Get the clue)
A covered bed (Feel like a trap)
A dawn mist (Deep inside)
Our playground reopened
When day and night change beyond the window
The deepening loneliness is walking dead
I keep wondering more (I wanna play)
The thick darkness falls and leads you to

Every look is like a mirror
Your shimmering silhouette
The moment that led to me watching me

Knock-knock, open up the door
A game where we keep wandering around looking for each other
I’m falling more and more into it
It’s so bittersweet but I like the chase
Got a devil on my shoulder
A gently whispered voice
Like an angel, come to me
Starting again
Knock-knock, who’s there?

I’m with you
Feel each other
Leaving a trace (Close)
Chasing and chasing again all night long (Run away)
When I was caught off guard
When I shoot out, I’m fallin’
Bi-bi-di, bo-bi-di, boo, ayy, oh
I swear to you
I drive it deeper, can’t sleep at night
Feeling drowsy, ayy, oh
This spell got, got me trippin’ and I like it

Close your eyes shine and shiver
Your unpredictable timing
The moment I noticed it, already watching me (Hey, ayy)

Knock-knock, open up the door
A game where we keep wandering around looking for each other
I’m falling more and more into it
It’s so bittersweet but I like the chase
Got a devil on my shoulder (Right here)
A gently whispered voice (Listen to you)
Like an angel, come to me
Starting again
Knock-knock, who’s there?

W-wow
The moment you open the door, another door
N-now
I confused you even more
My heart
The more you come in, you want it more
Knock-knock (Yeah)

Knock-knock, open up the door
A game where we keep wandering around looking for each other (Eh-eh)
I’m falling more and more into it
It’s so bittersweet but I like the chase (Oh)
Got a devil on my shoulder
A gently whispered voice (Oh)
Like an angel, come to me
Starting again
Knock-knock, who’s there?

Oh-oh-oh, oh
Oh-oh-oh, oh (Knock-knock)
Oh-oh-oh, oh, oh-oh-oh (Ah)
Oh-oh-oh, oh
Oh-oh-oh, oh (Devil? Angel?)
Knock-knock, who’s there?

Red Velvet “Knock Knock (Who’s There?)” Meaning

“Knock Knock (Who’s There?)” leans fully into Red Velvet’s “Velvet” side, delivering a dark, moody dance track that explores the intoxicating pull of a complicated romance. The lyrics frame love as a game of pursuit, where curiosity and desire drive the narrator deeper into an emotional maze that feels both thrilling and dangerous.

At its core, the song captures the tension between temptation and awareness. The repeated “knock knock” motif symbolizes an invitation something (or someone) calling from the unknown. Rather than resisting, the narrator is drawn in, even while sensing the risks. This creates a push-and-pull dynamic, where excitement and unease exist at the same time, like following a “devil on your shoulder” that you can’t ignore.

red velvet

The imagery throughout the lyrics reinforces a dreamlike entrapment. References to wandering, being lost, or trapped in a dream suggest that the relationship is not entirely grounded in reality. It feels surreal, almost addictive, as if the narrator is willingly staying inside a fantasy that grows more chaotic the deeper they go.

Musically, the track enhances this atmosphere with sharp string elements, eerie bell sounds, and a heavy bassline, building a soundscape that feels mysterious and slightly haunting. This production style mirrors the emotional theme beautiful but unsettling, controlled yet unpredictable.

Ultimately, “Knock Knock (Who’s There?)” portrays love as a seductive mystery one that invites you in with a smile, only to blur the line between desire and obsession. It’s not just about chasing someone, but about getting lost in the thrill of the chase itself.