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 ...

Fast-forward to the Kia Forum on Sunday, Dec. 15 where Eilish, who turns 23 on Wednesday ... with upbeat modern rock rhythms, with both Billie and Finneas walking around the stage while singing ...

Billie Eilish sat down cross-legged on the Kia Forum stage like a kindergarten teacher calming her class for story time. The 22-year-old pop superstar had just summoned the voices of thousands as ...