以下是《BoA Only One》的羅馬音歌詞：
BoA Only One
Oh Oh Oh Oh Oh Oh Oh Oh Oh Oh Oh
Oh Oh Oh Oh Oh Oh Oh Oh Oh Oh Oh
One Two Three Four
One Two Three Four
One Two Three Four
One Two One Two
Baby one two One Two Only One
Lalala 何も感じなくなった日曜日
Lalala nemo kanjinaku naetta niyoubi
不想在空虛的星期天感覺到任何東西
大人になろうと誓って 私は私
otton ni narou to chikatte watashi wa watashi
曾發誓要變得成熟 我是我
BoA Only One どんなふうに 探し続けたの?
BoA Only One donna fuuni sagashi tsuduke tano ?
BoA Only One 那樣持續尋找著 究竟是怎樣的方式呢?
そんな時に出逢った そう、夢だったの? 切ない
sonna toki ni deatta sou yume datta no ? setsuna . . . . . .
這時際 碰到了那個人 對吧 是個 夢想的切磋 心酸 (也這么認為) 美麗的殘酷的我 only one yeah oh yeah oh oh yeah oh oh oh yeah oh oh oh yeah oh oh oh yeah oh oh oh yeah oh oh oh yeah oh oh oh yeah oh oh oh yeah oh oh oh yeah oh oh oh yeah どんなふうに 迷子のままの私を抱きしめてくれるの?
donna fuuni maigo no mama no watashi wo daki shime te kureru no ?
會怎樣抱著我這個迷失的孩子呢? Baby one two One Two Only One Baby one two One Two Only One 涙が溢れてもいいの? Baby one two One Two Only One 傷ついてもいいの? Baby one two One Two Only One Baby one two One Two Only One Baby one two only one 我還是很能流眼淚呢 Baby one two only one 我還是很能受傷呢 No Baby Only You 是愛著你而已
だけど思ってたの きっと離さないの… yeah ちょっと向こう側見てみたい… I can't Stop Thinking About You 誰も気づかないの? yeah baby baby boy I'm so into you Baby one two One Two Only One Baby one two One Two Only One Baby one two Only One Baby one two only one I don't know what to do Baby one two One Two Only One 迷子のままの私を抱きしめてくれるの? Baby one two One Two Only One 涙が溢れてもいいの? Baby one two One Two Only One Baby one two Only One Baby only one yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... (End)