Source: http://www.sing365.com

Blue Days (A.K.A. Blue Days, Black Nights)
   ------Buddy Holly

Blue days - black nights
blue tears keep on fallin’ - for you dear
now you're gone
blue days - black nights
my heart keeps on calling for you dear
and you alone

Memories of you make me sorry
I gave you reason to doubt me
but now you're gone and I am left here all alone
with blue memories - I think of you

Blue days - black nights
I didn't realize I would miss you
the way I do
and now somehow I know I will pay
for the times I have made you blue