Please help me know this song! I know almost all the lyrics!?

Hi! please help me with this song! Its a slower song that has an acoustic guitar and some light drums and a tambourine. It sounds kinda Irish...kinda similar to stuff they on the movie PS I Love You.

The lyrics go

"What comes to mind when i think of old friends long ago? Music and laughter and fighting are things we should know. We laughed and we danced and drank until dawn we laughed and we danced some more. We drank we played and we sang until dawn, not knowing what we're living for. What comes to mind when I think of old loves from the past? Time flying by and wishing each moment would last.

We laughed and we danced and drank until dawn we laughed and we danced some more. We drank we played and we sang until dawn, not knowing what we're living for. Singing lie-di-lie-di-lie-die-lie-die-lie-die-lie."

Please help? Those are exactly how the lyrics go. But, Im trying to google them and I get nothing.