Mt. Pleasant High School’s senior class will be honored Saturday night in lieu of there senior prom.The  High School is hosting a special event called ‘Light Up the Campus.’ It will start at 8:20 Saturday and run for 20 minutes. The lights at Community Memorial Field and in the high school’s media center, technical center and performing arts center will all be on and seniors can circle the high school campus in their cars and be able to chat with or wave to their current and former teachers from their cars.