Sneak Peek: 'The Voice' Coaches Go for the Kill in Super Bowl Commercial

The Voice coaches are taking their musical rivalries to the next level in their Super Bowl commercial this year.

To promote the season 2 premiere, which occupies the coveted post-game slot on NBC, Blake Shelton, Adam Levine, Christina Aguilera and Cee Lo Green filmed a Kill Bill-esque ad that will air during the game. Of course, the punches aren't real, but message is clear: This year's competition is going to be fierce.

In his visit to The Tonight Show last night, Blake shared a sneak peek of the impending bloodbath:


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