Kristen Bell’s mermaid-y updo is perfect with her vintage-vibe gown. “The dress has textural detailing and it’s soft and drapey, and her hair does too, this is perfect,” Nerizagal says. It’s also easy to DIY.

Step 1: Start with wavy hair (or use a curling iron to create mermaid-y waves all over).



Step 2: Make a few small braids in the back of your hair. Then loosen the braids by opening up some of the places where hair crosses over itself.



Step 3: Gather hair into a low, messy, side-knot, like a messy chignon; allow a few chin-length tendrils to fall in front, and leave one braid out.



Step 4: Wrap the loose braid back and around the knot and secure with pins.



Step 5: Mist allover with a fine mist aerosol hairspray like L’Oreal Paris Elnett Satin Hairspray, $25.