Eilish's Saturday concert not only marked her final concert of the year, but also the end of the North American leg of her Hit Me Hard and Soft tour. She will hit the road again in February 2025, performing several already sold-out shows in Australia before making her way to Europe in April.

Billie Eilish is well-prepared for the holiday season. The singer closed out her five-night run at the Kia Forum in Los Angeles on Saturday (Dec. 21) with a cover of the Christmas standard "O Holy Night.

At her final show of the year, the musician treated the crowd to a classic Christmas tune in her signature style