UPDATE: 'Tis the season for Pentatonix's holiday catalog. The RCA group currently has four albums in the iTunes Top 20, led by their latest project, We Need a Little Christmas, which leapt to #1 on Wednesday (12/9) following their performance of "Amazing Grace" on The Kelly Clarkson Show.
That's Christmas to Me, A Pentatonix Christmas and The Best of Pentatonix Christmas all moved up following PTX's performance on NBC's Christmas in Rockefeller Center last Wednesday (12/2).
Look for seasonal dominance to continue for PTX as they line up more big looks, including an appearance on The Kelly Clarkson Show this week.