The pair joined the likes of The Rolling Stones, Lizzo, Taylor Swift and Stevie Wonder in One World: Together At Home.
Playing from their home – with Finneas on the piano – the duo delivered a moving version of the hopeful song. Finneas sprinkled a few bars of his recent Bond theme and Billie ‘No Time To Die’ at the end of the song.
Watch the performance of “Sunny” below.
After the performance, Eilish thanked key workers for their contributions during the coronavirus pandemic.
“I send our love to you,” she said. “I want to thank all of the healthcare workers who risk their lives to save ours.”
Elsewhere during the live broadcast of all the stars, Beyoncé shared an emotional message about the coronavirus, expressing concern about the “alarming rate” at which the virus kills black Americans.
“Black Americans disproportionately belong to those essential parts of the workforce who do not have the luxury of working from home. African American communities as a whole have been severely affected by this crisis, ”she said.
Paul McCartney, who also performed as part of “Together At Home,” recently shared his admiration for Billie Eilish, calling it “very special,” but admitting that he would not give up recording at Abbey Road by favor of working in a room.
Meanwhile, Rosalía has confirmed that her long-awaited collaboration with Eilish is nearing completion and is expected to be released shortly.