While performing in Glendale, Arizona, on her "Hit Me Hard and Soft" world tour, the singer-songwriter sat at the front of the stage, singing her Oscar-winning song, "What Was I Made For?"
During her heartfelt performance, Billie was hit just below the eye by a blue object, likely a bracelet, leaving her briefly stunned.
Fans began booing, and Billie seemed upset, but she quickly resumed the song without addressing the incident, showing professionalism.
The object hits Billie Eilish's face, leaving her briefly frustrated before she tosses the bracelet off the stage.
Fans throwing objects at performers has become increasingly common, with reactions ranging from Billie continuing her performance to Zach Bryan pausing his shows to address the issue.
Billie has several upcoming shows at the Kia Forum in Inglewood, where fans will hopefully behave better at the packed concerts.