Holiday Spirits, Straight No Chaser (Atlantic)

This a cappella group came together at Indiana University and became one of those Internet traditions we are all aware of when they YouTubed a performance of "12 Days of Christmas" that interpolates the carol into several other familiar carols, topping the whole melange off by singing the words over Toto's "Africa." A live version of that hit is the centerpiece of their 2008 Christmas CD. Ten voices strong, the cover kind of screams "glee club," but these guys, if not quite as deranged as the Bobs, manage to put together decent, snappy versions of rock-era arrangements of such tunes as "Jingle Bell Rock," "Christmas (Baby Please Come Home)," "Little Saint Nick," "This Christmas," and more. "The Christmas Song" is definitely glee club material, however. The version at iTunes has three bonus cuts, including a full version of "Africa." Here's the famous "12 Days":