LAKEWOOD - Katy Perry is performing a concert at Lakewood High School Friday.
Perry sang at the school Friday because students won a contest with a video they created. The video set to the tune of Perry's hit single "Roar" features more than 2,000 students, some of them lip-syncing to the song.
The video is a one-shot take moving throughout the school showing different student clubs, cheerleaders and athletes.
The concert will be broadcast live.