Hair style for Winter Formal?

So my Winter formal is around the corner and i already have my dress but i need some ideas for my hair. My dress is beautiful! It hits right above my knee and hugs my body perfectly. The entire thing is covered in sequins and when the light hits it they look like blue and purple shades. My hair is 4 inches past my shoulder, blonde with side bangs. Should i go up or down? if down, spiral curls or straight? thank you so much(: -Lauren