Billie Eilish sang a moving cover of The Beatles legendary song 'Yesterday' during the 'In Memoriam' tribute at the 2020 Academy Awards.
The 'Bad Guy' singer was billed to deliver a "special performance" at the ceremony, but no further details were given.
Among those remembered in the tribute were Kobe Bryant, Doris Day and Kirk Douglas.
In an Instagram post a few hours before the show, Eilish teased she would be performing a cover of a song she's "always loved" for the 'In Memoriam' tribute.
Fans had been hoping to hear a new song from Eilish after it was announced she would be behind the theme song for the new James Bond film, No Time to Die.
In a red carpet interview before the ceremony, Eilish said it was "so crazy" to be attending the awards.
The 18-year-old pop star was joined by her producer and brother Finneas, who also performed the cover alongside her.