What can one say but:
"When Irish eyes are smiling,
Sure it's like a morn in Spring,
In the lilt of Irish laughter
You can hear the angels sing.
When Irish hearts are happy,
All the world seems bright and gay,
And when Irish eyes are smiling,
Sure, they steal your heart away."

and yes, I have some Irish (royal in fact, ha!)
the two leaders jointly performed "When Irish Eyes Are Smiling", https://www.cbc.ca/player/play/899626563911