TWICE “ONE SPARK” ChoreographyTWICE “ONE SPARK” Choreography Video (Moving Ver.) Video (Moving Ver.) Post navigation Day 41: Chest & Back Strength (UpperTWICE “ONE SPARK” Choreography Video (Moving Ver.) Body Dumbbell Workout) / HR12WEEK 4.0 Day 41: Chest & Back Strength (UppeTWICE “ONE SPARK” Choreography Video (Moving Ver.) r Body Dumbbell Workout) / HR12WEEK 4.0