Although MBLAQ and B1A4 have pierced many a fangirl's heart over the years, they finally had the chance to shoot some real arrows during the finals of this year's 'Idol Star Athletics Championships'!

Going head-to-head, the two idol groups put on a heart-stopping match, with the leader impossible to determine.

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However, after a close competition, the final victor was B1A4, who claimed their win in the name of Shinwoo's Legolas-like hair. 

Watch the heart-pounding match below!