It’s common knowledge that the best activewear consists of your standard sports bra, leggings, and your oldest pair of sneakers that are suitable for working out. But for Billie Eilish, a day at the gym required something more. 

She was seen exiting a Los Angeles gym on June 21 while dressed perfectly in Y2K-inspired attire. The “Everything I Wanted” singer carried on her nostalgic fashion rebirth with a black and white training sneaker and a huge water bottle in her hands. She also wore a vintage graphic Spice Girls T-shirt, gray leggings, and clunky black moon boots. For an even more laid-back vibe, Eilish paired her surprising gym appearance with black spectacles and a cap featuring the Gucci brand.