《似曾相識》是ss501演唱的歌曲，收錄於專輯《THE_SS501》。
中文歌詞是：
從我的面覰走過 妳看著我
似乎有點懷疑 是不是在哪見過我
但是我的臉孔 現在看起來很模糊
彷彿被雨水淋濕的玻璃窗
遠遠的街角有個妳的身影
我們相遇的那一瞬間
總覺得曾經在哪見過妳
(rap)
我還記得那個妳
總是讓我無法忘懷
總是在我心中徘徊
總是在我夢中出現的那個妳
(chorus)
我感覺我們曾經遇過
在這條街角 在那個時間
我感覺我們曾經遇過
在這條街角 在那個時間
我們曾經相遇過吧
總覺得曾經在哪見過妳
彷彿總有無數的話想跟妳說
但是現在只能默默地看著妳的背影
(rap)
所以我想告訴妳一件事
當我們還是陌生人時 我曾經夢到過妳
在那場夢中 我告訴自己不要哭泣
但現在我已經控制不住自己的眼淚了
當你離別遠去 我再無法握住妳的手腕
我也感覺我們曾經遇過 我真的很感覺如此的...
(chorus)
我希望有朝一日 能和妳再相遇。
下面這段英文歌詞為：
Girl passing by my sight, looking at me with suspicion, wondering if we've met somewhere before. But my face now looks blurry to me, like a windowpane that's been sprayed with raindrops. Far away on the street corner, there's a figure of you, and in that moment when we meet, I feel like we've met somewhere before. (rap) I still remember that girl, who always makes me unable to forget, who haunts my heart, who appears in my dreams. (chorus) I feel like we've met before on this street corner at this time, in this place where we were strangers. I feel like we've met before on this street corner at this time. We must have met before, I feel like we did. You were passing by, and I couldn't help but think we'd met before. It's like there are endless words I want to say to you, but now I just watch silently as you walk away. (rap) So I want to tell you something. When we were still strangers, I dreamed of you. In that dream, I told myself not to cry, but now I can't stop my tears. As you said goodbye and walked away, I couldn't hold onto your wrist anymore. I feel like we've met before, really feel it... (chorus) I hope someday we can meet again.