A guy who just wanted to sing Justin Bieber songs into a microphone ended up terrifying Bieber's real fanbase: middle school students.

 Dunbar Middle School in West Virginia was put on lockdown — a scary, serious precaution — when a crazy dude burst into the school.

ABC West Virginia described the incident:

On Tuesday morning, police said a man did enter the school and came into the main office while the morning announcements were being made. The man said he wanted to sing Justin Bieber songs to students.

Sources: WCHS