Thousands of students performed a stunning mirror illusion choreography for a sports event. Footage shows the youngsters' synchronized performance in Ilocos Norte, the Philippines, on February 25. They all wore black in formation and swayed their mirrors to reflect against light. Their movements created a spectacular display like bright lights shining through the dark stadium. Eent-goer Reinabelle Junice Stayscie Manuel said: 'It was a beautiful performance that took months to practice.'