《SJ (It's You)》的詞曲由Super Junior自己完成，是Super Junior的第一首OST，也是他們的第一首英文歌曲。以下是《SJ (It's You)》的詞曲：
男聲部分：
(主歌) It's you
(副歌) It's you
(主歌) It's you
(副歌) It's you
(對話) I know it's you
(對話) I know it's you
女聲部分：
(主歌) You are my everything
(副歌) It's you
(副歌) I just want to be with you
(副歌) It's you
(和弦) 像這樣的日子不久將來到
(主歌) I don't care 任何事情都不在意
(副歌) It's you
(副歌) 只要有你 只要有你 在我身邊
(副歌) It's you
合唱：
(副歌) 就像這首歌 就像這首歌 為你唱出我的心聲
(副歌) 就像這首歌 就像這首歌 為你唱出我的心聲
總結：
(副歌) It's you (it's you)
(副歌) It's you (it's you)
(合唱) It's only for you (it's only for you)
這是一首充滿感動的愛情歌曲，歌曲中充滿了對愛情的渴望和熱烈情感。歌詞表達了主人公對愛情的執著追求和對愛情的堅定信念。整首歌旋律優美，歌詞深情，是一首非常動人的歌曲。