A friend has a Christmas CD from the three tenors, or a similar group, and it includes this song. There's not much stranger than listening to world-renowned singers performing this song.
From Wikipedia this fun fact:
"The song has become a festive classic in Ireland and the UK over the years, and was voted the best Christmas song of all time three years running in 2004, 2005 and 2006 in polls by music channel VH1 UK,"
I couldn't watch the full video, I just listened. Shane MacGowan's teeth kept distracting me. There were a few other versions of this song on YouTube. Most of them with MacGowan, seemingly, in various states of inebriation.