Two a capella choruses, two holiday tunes. But...

Straight No Chaser, hailing from Indiana, had a YouTube hit that took them to yesterday's Today Show, a polished yet new rendition of a familiar tune.

Straight No Chaser - 12 Days of Christmas

Aiming for another niche entirely, The Richter Scales won a Webby Award for last's year's ditty, Here Comes Another Bubble, based on Billy Joel's We Didn't Start the Fire.

This year, they're partying "like it's 1934" with a parody of Have Yourself A Merry Little Christmas.

Banks are failing, stocks are flailing
Folks are gripped with fear...