Fashion is used to observe the zeitgeist of a year. Last year’s defining trends included blanket scarves, lace-up tops, A-line button through skirts, joggers and Birkenstocks.

This year, we’re likely to see the rise of midi skirts, exposed shoulders and dramatic ruffles, but only time will tell. Regardless of whether you like to jump on the New Year’s trend train or just keep an eye on what’s hot, here are a few fashion and beauty trends that will likely take 2016.

Opal Hair

In 2015, trendsetter Kylie Jenner changed her hair color just about every time E! ran a “Keeping up with the Kardashians” rerun. She kept us guessing with crazy colors from light blue to dusty pink to bold green. Modeling’s newest “It Girl” Irene Kim also made a name for herself last year with her rainbow-dipped tips.

In 2016, the technicolor hair trend will continue, but the standout look will be opal dyed locks. Opal hair popped up this fall as a lighter, more subtle version of rainbow hair that resembles the iridescent colors of the opal stone. It is a less dramatic option than dying all your hair one bright color, but the light mixed hues are infinitely more interesting.

Pastels

Speaking of color, 2016 fashion is also seeing a shift on the color spectrum. While 2015 was all about the deep, rich maroon Pantone called Marsala, the color forecasting company switched gears when naming the 2016 Color of the Year. For the first time ever, Pantone let two colors share the crown: Rose Quartz and Serenity.

In layman’s terms, the colors are pastel pink and blue. They are meant to blend together seamlessly and evoke calm and peace. Pastels and dusty, demure tones like blush pink, mint and baby blue will be big this spring, giving you the excuse you need to dress exactly like the Chanels from Scream Queens.

Lingerie Dressing

We saw slip dresses come into fashion in 2015, but intimates-inspired pieces will take over this year. Wearing undergarments as clothing isn’t an entirely new concept (remember when Selena Gomez wore satin pajamas out and about in Paris in September?), but the trend is about to hit full force. Designer brands like Givenchy, Balenciaga and Miu Miu all showed lingerie inspired looks with lace edging, flowing satin and sheer fabrics on the Spring 2016 runways.

In the real world, girls will mix the trend with the ’90s style they’ve been developing over the past year. Expect to see slips layered over T-shirts and loosely structured dresses as well as visible lacy bralettes under relaxed sheer pieces.