Michael Buble's Christmas special airs next Tuesday night at 7pm on NBC. Stars like Kellie Pickler, Oscar the Grouch, Justin Bieber and '30 Rock's Tracy Morgan make appearances. But I'm anxiously awaiting the cameo by The Office's new Head Honcho: Ed Helms.

Buble and Helm cut a couple of skits for the show but one won't make it on the air- and I found it on The Office's website. They play hosts of a live 1974 Christmas special that spins out of control and it's mostly due to their 'electrifying' performance... and that 'killer' sweater.

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