You can probably guess what happens when you throw Justin Bieber in a room with a gaggle of teenage girls. In case you couldn't figure it out, people lose their freaking minds.
That's what happened this past weekend when Bieber decided to crash a high school prom in California.
Bieber showed up unannounced to the Chatsworth Charter High School prom. Apparently, he was recording in a nearby studio.
When the Biebs arrived, people went bonkers, and the prom was taken to the next level. You can see the chaos below.
Citations: Justin Bieber crashes high school prom and causes absolute mayhem (Metro)