Round 2 of the Country Mega Bracket has begun, and it's time for more head-to-head matchups from The Groups and The Ladies.

We've got Lady Antebellum vs. Zac Brown Band, Brothers Osborne vs. Old Dominion, Carrie Underwood vs. Lauren Alaina, and Kelsea Ballerini vs. Maren Morris. Who do you want to win?

Vote now here or on the main Country Mega Bracket page for each matchup.

Voting ends at midnight, and the winners will be revealed Wednesday, March 13, online and on the air.

Lady Antebellum vs. Zac Brown Band

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Brothers Osborne vs. Old Dominion

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Carrie Underwood vs. Lauren Alaina

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Kelsea Ballerini vs. Maren Morris

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Vote and follow along for all the results on the main Country Mega Bracket page.

Full Contest Rules Available Here