This one has been floating around the ether the past few days but just in case you missed it and in the spirit of sharing for the season and the tradition of presenting Messiah at Christmas I give you: The Silent Monks singing Handel.
It appears that this routine has been taken up by several choral groups and become as seasonal favorite. There are four or five versions on YouTube - unfortunately the video by the Monks of St Francis de la Sissies (The Portland Gay Men's Chorus) is not of the best quality though their introduction is inspired lunacy.
With thanks, as always, to Cathy.
13 decembre - San Giovanni della Croce