The actress chose a lemon yellow bustle dress which featured draping at the waist and sheer panelling at the décolletage and waist.
It's a bit sickly-sweet for us, but her braided hairstyle and bold red lip will be perfect festival looks for the season ahead.
Try the Look at Home
Hayden's hair was braided in a halo around her head, which we imagine might be a little tricky to recreate, so instead we're planning on braiding the front section while pinning the rest of our locks into a high, messy bun.
The makeup look should be a lot easier to do at home. The bold red lip has taken centre-stage, and as you can see from the below photo, Hayden's lips have been carefully lined in a matching lip liner to provide the perfect outline.
Very subtly bronzed cheeks and a luminous, but matte complexion really make the colour pop.
Perfectly shaped brows are a must here too - a bit of powder in a shade lighter than your nautral hair colour can help to fill in any gaps.
Finally, a touch of gold eyeshadow on the inner corner of the eyes and some individual false lashes will make lashes look fluttery and full.
Tip: To make red lipstick last longer, first line lips with lip liner and fill in the lip using the same liner. Apply the first layer of lipstick, blot, repeat twice. If you want a matte finish, lightly dust some face powder over your lips.