Superstar Justin Bieber—who is now officially an adult (did you read that GQ profile yet?)—suffered a concussion yesterday after walking into a glass wall in Paris. WHY GOD? The impact occurred during a performance there, and was enough to make him faint. He was later diagnosed with the mild concussion, but is now recovering with just "a little bit of a headache."

The Biebs told TMZ, "So basically, um, you know… there [was] a glass wall behind me but there's a railing behind the glass. And so, um, I went to reach for the railing and hit my head on the glass." He added, "I guess me and glass windows just don't go together" (blame the old bangs?) referring to his prior run-in with his transparent nemesis—he later Tweeted, "I will see u again Glass. I will have my revenge."

The below video is from when Bieber walked into a glass door back in 2010—which is particularly amusing because of how he has to throw his whole body into pushing the door.

Bieber will be playing Barclays Center and Madison Square Garden later this year—there is currently a presale for tickets which officially go on sale tomorrow.