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 TVXQ in the semi-finals here!

The battle begins today between TVXQ and BIGBANG, two long established acts on the K-pop scene now going head-to-head in the first round of PopCrush's 2017 March Madness series.

With Yunho and Changmin's mandatory military service ending in 2017, TVXQ is plotting what is expected to be a massive comeback to the K-pop scene this year. Their last studio album, Rise as God, was released in 2015.

BIGBANG, on the other hand, are going harder than ever over one decade since their 2006 debut, having just released their third full-length studio album Made in December of 2016, featuring smash-hit singles "Fxxk It" and "Last Dance." They're also planning a special fan meeting event throughout Japan later in 2017.

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

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

TVXQ and BIGBANG Over the Years: