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Blake Shelton, Meghan Trainor

NBC

Uh-oh...is one of the best bromances on TV about to crumble?! It sure looks like it!

Now that Blake Shelton has chosen Meghan Trainor to be his epic new celebrity advisor for The Voice, the two southern singers are hitting it off and goofing around in a way that reminds us of his early days with fellow The Voice coach Adam Levine

Is Trainor going to become Shelton's new BFF? From the way they're acting in this exclusive first look clip at their battle round rehearsals, we think Levine better watch his back!

Press play on the video above now to watch the exclusive clip of Trainor and Shelton's new friendship blooming during the battle round rehearsals.

E! News previously revealed that the "All About That Bass" singer will mentor Team Blake in the NBC reality hit's hugely popular battle rounds, which kick off on Monday, March 9.

This won't be Trainor's first time appearing on the show, as she performed her hit song "Lips Are Movin'" last season.

The Voice airs Mondays and Tuesdays at 8 p.m. on NBC.

(E! and NBC are both part of the NBCUniversal family.)