《I'll Be One》的歌詞如下：
I'll be one
One for you, one for me
One in the morning, one at night
One in a million, one in a trillion
One, I'll be one
To tell you the truth, I don't know why
I love you so, I'd be one without a doubt
I'll be one
One for you, one for me
One in the morning, one at night
One in a million, one in a trillion
One, I'll be one
If you're lonely tonight, well don't you worry about it baby
I'll be one for you and one for me
I'll be there, I'll be there in a flash of lightening
I'll be gone before you can say Jackrabbit baby
One for you, one for me
One in the morning, one at night
One in a million, one in a trillion
One, I'll be one (x4)
這是一首表達愛意的歌曲，歌詞中表達了對於對方的深深愛意和承諾。