The 18-year-old singer wowed the crowd with a performance of"When the Party's Over"at the 2020 GRAMMY Awards on Sunday, highlighting her voice with a piano accompaniment by her brother and collaborator, Finneas O'Connell, as well as a choir.
Eilish is nominated for a total of six GRAMMYs this year, including nods for Best Album, Best Song and Best New Artist.
When ET caught up with Eilish last November, she said that she was honored just to be included in the group.
"It doesn't really matter who wins it, because... to be even nominated at all, to be in the realm of the GRAMMYs in any sort of way, is really indescribable," she said. "I've been watching the GRAMMYs my entire life... and it's insane."
"God, I mean, I don't know how to put it," Eilish told ET. "I thought it was fake because how can you not? It really makes you think about a lot of things. It's hard to talk about. It's so sudden and so random and, like, his beautiful girl. I have no words. My condolences. I don't know what to say."
Eilish paid tribute to Bryant by posting a photo of him on her Instagram Story ahead of the awards show.