We were doing the actions to the part that says "the mountains are his, the valleys are his" and Eóin was singing along but instead of singing "the valleys are his", he sang "the BELLIES" are his. I was cracking up because when I do the actions and make a valley with my hands, the only place they have to go now is under my big belly so he thought I was holding my belly - thus "the bellies are his". I could not stop laughing through the end of the song :-)
Never a dull moment!