We've seen a lot of bickering and some out-and-out singer stealing on "The Voice," but whose pipes could inspire judges Christina Aguilera, Blake Shelton, Adam Levine and Cee Lo Green to really battle it out, Vocal Kombat style?
We've got a sneak peek at their big Super Bowl spot (the Season 2 premiere airs Feb. 5 on NBC, right after the big game) and they went all out, nabbing directed by Peter Berg to perfect their fight scenes, and a very special guest star: Betty White.
Yes, the "Golden Girls" star's comeback tour continues -- watch her adorable reaction to being caught singing in the shower above.
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