NBC has posted a few preview videos from the second season of The Sing-Off, the mini-series showcasing a cappella groups which debuts December 6. Here is a clip from the opening number featuring all ten groups. There are also individual features on each group.
Ben Folds is, of course, one of the judges again this season, and he has been blogging about the second season as well. Read his “On Key” posts from the NBC website.
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