I never heard of this German pop duo "Riviera" before, but their a cappella rendition of the folk song Maria durch ein Dornwald ging ("Mary walked through a thorny wood") is very sweet.
[Update: Here's an English lyric I made up, for those of you who aren't polygons:]
Once Mary walked through thorny wood, Kyrie eleison;
Where seven year no leaf had stood; O Jesus, O Mary.What bore she under her heart-beat? Kyrie eleison;
'Twas Jesus Christ, our Lord most sweet; O Jesus, O Mary.And as they wandered on that morn, Kyrie eleison;
A rose sprang up from every thorn; O Jesus, O Mary.
For something completely different: Victor Lams sends up the pseudo folk-song "Lord of the Dance" in the style of a '70s TV theme ("Shaker Funk"). I'll listen to that while meditating on this "icon" (thanks, Fr. Sibley).