Last week, Prepix, the choreographer of B2ST's latest title track 'Soom,' uploaded photos of the boys' practice video. Since then, lots of things have happened including the release of B2ST's 'Soom'�MV, as well as the comeback stages on Music Bank, Music Core and Inkigayo. Like promised by Prepix, the practice video of B2ST's 'Soom' was finally released today! The video first introduces co-choreographer Mike Song from Kaba Modern, followed by Haw from Prepix and the producer, S.Tiger. At the end of the video, it includes funny bonus cuts of the boys dancing. Check it out below.