omg i totally forgot that infinite had a band perf during their concerts and they might actually perform in the bg for sunggyu. ffffuuu if that happens it'd be like a little infinite comeback omg my heart. but idt they could have used him in the mv because look how much backlash it generated already, with myungsoo being the lead actor. if the other members played the instruments other fans might see it as woollim using sunggyu to push the other members of something idk. and they used the members as part of the band in epik high's mv already haha