She wore a tailored black jacket atop an untucked white button-up shirt, black slacks and matching dress shoes.

In the accompanying video, Eilish was near-undressed, a stark pivot from her usual layered style. She donned a lacy slip with ...

Meghan Markle is sharing how Adam Levine, Behati Prinsloo, and Billie Eilish helped her make a teen's wish come true ...

FireAid, featuring Billie Eilish, Lady Gaga, Sting, Red Hot Chili Peppers and others in a fundraiser for Los Angeles-area ...

"If I lose everything in the fire / I'm sending all my love to you," Eilish sang at the concert ... and comedian Billy Crystal told the audience he was wearing the same clothes that he had ...

Billie Eilish performs onstage with Billie Joe Armstrong of Green Day during the FireAid benefit concert at The Kia ... wearing the clothes he had on when he escaped the Pacific Palisades fire ...

Stars including Billie Eilish, Pink, Katy Perry, Nirvana and Dr Dre performed at FireAid on Thursday, a benefit concert in Los Angeles ... wearing clothes he had on when he escaped the Pacific ...