《LONELY》是NU'EST演唱的歌曲，發行於2018年，是NU'EST-M專輯《LOVE&PEACE》中的一首歌曲。
中文歌詞為：
我 看著你的側臉 靜靜的想著
愛是否真的像我想的那樣
如果這就是愛 我的心真的不知道
只知道我的心情已經不在我自己的控制之中
孤獨 一直陪在我身邊
我的愛 現在只剩下寂寞
獨自一人的我 感到孤單
一直這樣下去 我不知道該怎么辦
只能愛你 我只能愛你
愛 只有你一個
無論何時 無論何地 我都會想你
一直愛你 我只會愛你
只有你一個 在我心中 愛你是唯一
但不知何時 你的心情已不再有回應
我們的愛就這樣漸漸的疏遠而遠去
孤獨 一直陪在我身邊
我的愛 現在只剩下寂寞
獨自一人的我 感到孤單
只能愛你 我只能愛你
愛 只有你一個 我不知道該怎么辦
我已經深深地愛上你 你知道嗎?
只有你一個 在我心中 愛你是唯一 我愛你 只有你一個...
羅馬拼音歌詞為：
An cheo neun du ju-i geu reoh ge man na-i ji (Lonely)
Neol gi-eok geul it neun sa rang I reoh ge si-eok jyo (Lonely)
Na ga bwa do neol ham ggeo si mi an na do neol ggeut gil su eob si (I love you)
Ape cheo reom neol hwa ju ji ma neol ba da ji do nae ib gyeo bwa (I need you)
Dui ddae nae saeng gil su eob neun geu dae reoh ge (Lonely)
Neol bo na go an ha ne yo (Lonely) I love you only you (lonely) you only love me too (lonely) meol eo jil ddae meo geol neun neol ggeut gil sseo (lonely) I only need you to love me (lonely) nae mam deul ddae meo ji neol ha go sipeo (Lonely) an ddae nae saeng gil neol ha ne yo (Lonely) neol bo na go an ha ne yo (Lonely) yeong won hi ji doon ah reum da un jeon bu eok geo jeon neol saeng gak sseul geol (Lonely) I can't stop thinking about you, girl, can't get you off my mind (Lonely) don't know what I'm gonna do now, my heart belongs to you, baby, oh I only need you to love me. Oh, oh oh oh... oh, oh oh... yeah... Oh, oh oh oh... Oh, only you, only you... Oh, oh oh oh... yeah... Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you. Only you...(lonely) lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely lonely(lonely) lonely(lonely) lonely(lonely) lonely(lonely) lonely(lonely) lonely(lonely) lonely(lonely) I can't stop thinking about you, girl, can't get you off my mind, yeah... I only need you to love me now... I only need you to love me now... now now now now now now now now now now now... NOW!