March Madness 2017 is a month-long competition on PopCrush to determine the best of the best of South Korean boy bands and girl groups.

This round is now over! Vote for Apink in the semi-finals here!

The battle begins today between BLACKPINK and Apink — two leading girl groups that both just happen to love the color pink — now going head-to-head in the first round of PopCrush's 2017 March Madness series.

After making their smashing debut last year with "Boombayah" and "Whistle," the girls of BLACKPINK quickly became one of the most buzzed-about rookies, earning them a Gaon Award at this year's ceremony. They're expected to come at us even harder this year with a follow-up to their first two releases.

Apink are K-pop veterans at this point, delivering hits since their 2011 debut. Their most recent release, December's Dear, included three duets sung by pairs of the girl group's members, as well as title track "'Cause You're My Star."

The battle starts now: place your vote between BLACKPINK and Apink. This round ends on March 10.

Join the conversation on social media! Use #PCMarchMadness to discuss this year's competition.

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