stay in the groove with align. ♪ here's one more thing to feel >> here's one more thing to feel guilty about during this festive season. an extraordinary new standard for holiday cards. >> yours probably won't go the distance like the ones that marci gonzalez found her e-mail. most of those going viral this year. ♪ down through the chimney with good st. nick ♪ >> reporter: 'tis the season for spreading holiday cheer in some unconventional ways. the slade family from arizona, foregoing the typical christmas card and going digital. their unique family holiday video posted to you tube now a viral sensation. >> ho, ho, ho, who wouldn't know ♪ ♪ i will have a blue christmas >> reporter: they made their video debut in 2011 underwater lip syncing to the king himself. ♪ i'll be so blue just thinking