The Euphoria star hit the stage to perform a surprise duet with Labrinth over the weekend.
The Grammy-winning singer received mixed reviews when he closed the show at Coachella's first weekend on Sunday night.
The Bad Guy singer suffered a tumble after tripping on some fire safety equipment.
The Blur frontman sparked controversy last year when he praised Billie while seemingly questioning Taylor Swift's songwriting abilities.
"In the car with my mother as a child, this lady taught me to sing. She also taught me that men are trash.”
Billie Eilish stopped her show to help a fan with an inhaler, and made a comment that Kanye West took as a dig at Travis Scott.
The US music festival – and its country counterpart, Stagecoach – will not be going ahead in 2021.