A school year just isn't complete without a senior class prank.
A group of Santa Barbara High School seniors decided to take their prank to another level, hiring a mariachi band to follow their principal around campus.
Principal John Becchio got a surprise when he walked into his office about 7:15 a.m. Tuesday and saw the four-piece band inside.
"What are you doing here?" he asked them.
They responded with music — and continued to play for about an hour and a half as he walked around the school's hallways, he said.
A YouTube video of the prank has gone viral, and was even featured on the "Today" show.
Becchio's mother, who lives in Oregon, immediately called him after seeing the TV show clip.
"I didn't think it would take off the way it did," he said. "It's kind of clever."
The mariachi prank came after Becchio had endured another hoax from the senior class.
On Monday he walked into his office to discover all of his belongings shrink-wrapped.
Becchio said he doesn't mind being the center of the pranks, as long as the seniors are making good choices.