Lyrics:

We'll meet again don't know where don't know when
But I know we'll meet again some sunny day
Keep smiling true just like you always do
Till the blue skies make the dark clouds fade away
Some sunny day hey hey hey (3x)
We'll meet again don't know where don't know when
But I know we'll meet again some sunny day
(repeat first verse)
(repeat second verse)
Thanks to Irene for the correction