black dress jcpenney Threaded Pear Women's Edith Sleeve Shift Mini Dress, Color: A clean square neckline frames the collarbone Jcpenney Black Prom Dress Evening

If the jeans feel too casual for the specific service you are attending, you can easily swap them for a pair of black cigarette pants or even opaque tights

(If this is news to you, well, we hope you had a good long nap under that rock.) From Instagram mood boards to red carpet fits, the menswear zeitgeist is chock full of trends that children of the Rugrats era will all find strikingly familiar

For accessories, stick to black, silver, or white

Advertisement - Continue Reading Below 19 Big Sunglasses Getty Images We'll get to tracksuits in just a sec, but the whole ironic sunglasses at night was a fave of 00s stars, especially when the sunglasses in question spanned from the mid forehead to past your cheekbones