Millennials, rise up. Haley Bieber has resurrected the ultimate trend of the 2010s. Yes, we're talking yoga pants.

Like the most popular girl in your high school, Haley Bieber wore what teens are now calling "flared leggings" in classic black. Instead of camel UGG boots and a North Face, she paired them with a boxy leather jacket and matching pointed-toe kitten heels.

The model was dressed for math and yoga classes, but was actually attending a Wednesday night church service in Beverly Hills with her husband Justin (he wore the same $2,520 slippers and jorts she chose for her baby shower).

Her bottoms were from 2010, but the accessories Haley chose were from 2024. While each item was vintage-inspired, her additions touched on some of the summer's most buzzed-about trends (except the buttery yellow of the baby shower manicure).

Models wore 80s-style chunky gold earrings, a "Mob Wives"-style cheetah-print shoulder bag, and thin oval sunglasses. Hair was also styled in a modern style.

Although Hayley is only a few months away from entering Generation Z, she is well aware of the former millennial trend. The model has been wearing yoga pants for years and even participated in the UGG boot revival of 2022. Haley is also part of the polo shirt revival. Not the spiffy Hollister style we used to wear, but still.