This song is not a BAckstreet song, althought Howie sings it with his sister I think it's important to say that

Yesterday is now a memory
Just a picture on the wall
Of a life I once shared with you
Someone who listened when I called
(Bridge)
So many things I should have said to you
I had the chance and let it slip away
If I could fly to heaven (if I could fly up)
Just to see you one more time (just to see you one more time)
I'd fly all the way to heaven (to heaven)
Just to say that I love you
The last three words you said to me
I love you
Remain an echo in my mind (remain an echo in my mind)
Never imagined that you'd leave so soon
I will miss you sweet Caroline
(Bridge)
(Chorus)
If I could fly to heaven (vuelvo a cielo)
Just to see you one more time (quiero verte otra vez)
I'd fly all the way to heaven (directo al cielo)
Just to say that I love you
(Angel de la guardia) Now I lay me down to sleep
(Dulce compania) I pray my heart and soul I'll keep
(No me desampares) And if I should die before I wake
(Ni de noche, ni de dia) In your arms my soul you'll take
(Chorus)
Te Amo
(Chorus 2 x's)

(This song is in the album of Pollyanna written by Howie D and Pollyanna Dorough)