This prom season, some of the biggest celebrations across the country are taking place before the official dance even begins. Prom send-offs -- when friends and family members gather to celebrate high school students before they leave for prom -- are now events of their own, with some families spending thousands of dollars on the celebrations. Lakyia Gartei, a student at Pennsbury High School in Fairless Hills, a Philadelphia suburb, told ABC News her prom send-off was months in the making.