Liam at least was a naturally gifted actor , I got chills the first time I listened to this. Its part of Robert Emmets Epitaph from the dock. Emmet was an Irish republican rebel leader who was hanged for treason in 1803. Epitaph from the dock is the speech he gave to the court during his trial.
In this clip they have just finished a song and Liam breaks out this moving speech with impeccable delivery.
WOW, that sort of stirred up the Irish genes in ME even though we've been in South Africa for many a generation now! Apparently my grandfather from that side was a bit of a folk musician, and I think his grandfather might have actually come from Ireland! I will try find out exactly how long it's been since a John Dick was born in Ireland - and whether some music-loving went up that family tree!