The song was one of multiple holiday classics Eilish performed during her sold-out stint at the Kia Forum.
After the performance, the Grammy winner took a moment to explain the festive song choice.
Im not religious at all, I just love Christmas so much, she explained inan additional concert clip.
Billie Eilish.Credit:Kevin Mazur/Getty
I also grew up in a choir, so thats just my s—.
One user wrote, “I will die on the hill of a Billie Eilish Christmas album.”
Watch Eilish perform “O Holy Night” in the clip above.
Billie Eilish.Kevin Mazur/Getty
