Stretchy, knit headbands have served a couple of purposes in my lifetime.

By Tuesday, there was nary a head-encircling hair accessory in sight.

More major hair looks:

Now check out Bailey Sarian’s 10-minute beauty routine:

Millie Bobby Brown smiling in a strapless purple outfit

Getty Images

Millie Bobbie Brown wearing a headband and sunglasses waving at a camera

Getty Images

Millie Bobbie Brown wearing a headband and waving at a camera

Getty Images

Millie Bobbie Brown wearing sunglasses and a leather jacket

Getty Images