Singing Astronaut Chris Hadfield starts a seisún in Donegal
The new Ireland Tourism ambassador lived up to his 'singing astronaut' moniker by grabbing a guitar in a busy Donegal pub.
Commander Hadfield gave the customers at McGrory's pub in Donegal a surprise when he treated them to a rousing rendition of Danny Boy.
Tourism Ireland are creating three short films of Hadfield's five-day visit, which will be shared on social networking sites to highlight the country as a a holiday destination.
"I have been around the world more than anyone you've ever met, 2500 times or so, and I think that deepens your appreciation for just how beautiful certain parts of the world are, as well as the reaction from the people," Hadfield said.
"There was obviously a link with Ireland with my daughter studying here for several years, but it was like a blossoming friendship from orbit, it's been very interesting.
"I really wanted to come back and see Ireland, so to be cast in an ambassadorial role, I'll be seeing it with new eyes, which will be a real treat for me.
"I can't wait to come back in the future to meet people and travel around the country."
Link-sharing website Reddit have even rebranded the subreddit temporarily to honour Hadfield's visit to Ireland, renaming the section 'Haddit' and adding a picture of the famous 'reddit alien' in a spacesuit.
Hadfield has captured the attention of the country on his visit, learning to play hurling and posting pensive pictures of himself atop Malin Head.
You can watch Commander Hadfield taking a hurling lesson below and you can follow him on Twitter here.