Copy Marina and the Diamonds' Easy, Girlie Festival Hair Bow

When it comes to attending music festivals, Marina recommends keeping it simple with a lot of sunscreen and a matte red lip. But she takes more chances with her hair.

"I did a shoot the other day in London, and we were using like neon ribbons tied in our hair," she said. "So, it's not like a bow or anything. You just tie it around a strand of hair and leave some of it trailing — and it looks really good! So that's what I'm going to be doing."

To complement the accessory, she suggests a natural beach wave.