Billie Eilish has been embracing Y2K style for a while now. From her signature oversized t-shirts to wearing those loose, baggy pants known as culottes, along with her affinity for plaid ...

And—not surprisingly—a lot of kids with baggy pants, oversized t-shirts, and affluent parents. Billie Eilish wore the same uniform ... And when a toxic green ’Brat’-colored light bathed the arena ...

Billie Eilish, and Troye Sivan. Early on in the festival, you could tell that Charli’s set was one of the most anticipated of the day. Everywhere you looked, fans had shown up in brat-green ...

When you think of Billie Eilish ... green and black (the brand also sells it in red and navy). To make the look suitable for the cold New York City weather, I layered a gray long-sleeve T-shirt ...

Phillips Billie Eilish helped replace a Los Angeles wildfire victim’s lost t-shirt with the help of Meghan ... Eilish opened the show with a Green Day duet, and later returned for a solo set ...

Hours after she joined Green Day to kick off FireAid, Billie Eilish returned with brother ... Looking sleek in a black turtleneck and tight pants, Sting was in guttural form as he continues ...

Hit Me Hard and Soft hitmaker Billie Eilish stepped out in a nautical ... Outer Banks star Chase Stokes wore a dark green collared shirt and matching pants, which he paired with a white suit ...

Billie Eilish has made her much-anticipated ... embroidery layered over a large white button-down shirt, black tie, and baggy black pants. She accented the outfit with shiny black combat boots ...

Billie Eilish sang with Green Day and Stevie Nicks thanked the ... In the crowd, men and women in "First Responder" T-shirts danced as Sting joined Stevie Wonder to sing Wonder's hit "Superstition." ...

Green Day caught up with Billboard's Tetris ... Ukrainian government sells T-shirts with viral Zelensky quote from disastrous Trump meeting US to Name Morgan Stanley Banker to Lead Sovereign ...