I saw these two mv's on ONDEMAND two years ago, and I didn't write down the names or anything so please help me if you can

1- a girl was singing solo, and it was a slow song, maybe in slow motion i don't know. But the biggest part of the mv I can remember is that she started cutting off all her hair

2- boy group, who I thought was boyfriend but not because I saw the mv before boyfriend debuted, anyway they were dressed in all red, white, and blue, and I think in some part kind of like football players idk fuzzy memory

but I woyld love it if you guys would help me find these mv's