About 100 students occupied the student union at the University of North Florida on Tuesday afternoon, but it wasn't for a protest.

It was for a flash mob that broke out at exactly 12:10 p.m. Students filled the square with a choreographed four-minute dance as hundreds of other students looked on.

The students said they've been planning the flash mob since the summer. They did it to raise awareness for the Children's Miracle Network.

"We saw Ohio State's flash mob and we wanted to outdo it," the flash mob's organizer said. "We wanted to do it for a better purpose, so we did it for the kids."

The students also invited some local families who benefit from Children's Miracle Network Hospitals, but they didn't tell them about what they had up their sleeve. So the dance came as a complete surprise.

"It was great. It was exciting. It was exhilarating, and it was awesome to see all these young people get together for this purpose," said Kim Valle, who was there to support the Children's Miracle Network.