《Noisy Cell Over You》的詞曲作者是SHINee的成員Key。歌曲以神秘的弦樂和氣息豐沛的鼓點開場，呈現出神秘的氛圍。歌曲中的Key的聲音也如歌詞一樣充滿了神秘的氣息，是一首以迷幻旋律和合成器音效為主軸的歌曲。
以下是《Noisy Cell Over You》的英文歌詞：
Verse 1:
I feel like I'm losing my mind
I'm feeling a little bit too much
It's like my heart is on a rollercoaster
Going up and down with no control
Chorus:
I can't get you out of my head
It's like a noisy cell over you
My heart is beating so fast
I'm falling for you so hard
Verse 2:
Every time I close my eyes
I see only you in my dreams
It's like my heart is on repeat
And I can't stop it from happening
Chorus:
I can't get you out of my head
It's like a noisy cell over you
My heart is beating so fast
I'm falling for you so hard
Bridge:
It doesn't matter if it's real or not
Because I don't care what they say
I just want to be with you now
And keep falling for you day and night
Chorus:
I can't get you out of my head (x2)
My heart is beating so fast (x2)
Falling for you so hard (x2)
Yeah, I'm falling for you now (x2)