Justin Bieber isn't letting his mild concussion get in the way of performing!

The 18-year-old singer, who recently ran into a glass wall backstage at his Paris concert, recorded a video of himself not being able to move his eyebrow. Biebs jokes, "I got into a fight with a glass window."

The "Baby" singer continued the show following his accident, however he reportedly passed out for 15 seconds while walking to his dressing room.

Let's hope JB's eyebrow gets back to normal ASAP. What a trooper!