A live version by the 10-man a cappella group Straight No Chaser reached #5 on the Adult Contemporary chart in 2006 after one of the group's members, Randy Stine, uploaded it to YouTube. The video was from a 1998 performance at Indiana University, where the group formed. Their nonlinear rendition contains lots of quirky tangents, with bits of many Christmas classics thrown in and also mashup with the Toto song "Africa
The video went viral, and after receiving 9 million views (a huge number in 2006), they were given a five-album deal by Atlantic Records (the original group had long since disbanded post-college, but re-formed when the Atlantic deal came through).
Their take on "Twelve Days of Christmas" marked the first time a Christmas song appeared on the AC chart.