Having revealed a teaser and mini album earlier, rookie group D-NA (Dae Guk Nam Ah) who just completed a showcase last night, has now revealed the MV for their comeback title track, Stumble Stumble. Hoping to leave a stronger impression this time, the boys have ditched their boy image for a more masculine one. Did they manage to make the transformation? The boys will have their first comeback stage on June 18th through Music Bank. http://www.youtube.com/watch?v=j0OWpGAb1x4 Many thanks to eunmi for the tip.