The 18-year-old also performed "Yesterday" by The Beatles alongside her producer-brother Finneas during the portion of the ceremony, which comes just days after the death of Kirk Douglas, one of the last surviving stars of Hollywood's golden age. Kobe Bryant, a 2018 Oscar winner for the short "Dear Basketball," was also included in the segment.
The somber performance follows the 2020 Grammys where Eilish made history by being the youngest artist to win the top four honors, including album, song and record of the year, along with best new artist.
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Other Oscar performances include an opening number for the ceremony from Janelle and Eminem, who surprised the audience with a performance of the rap smash "Lose Yourself." All of the original songs nominated were also performed.