When was one of the casts in "High School Musical 2" born? 
High School Musical 2:  The primary cast, including Zac Efron, Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, and Corbin Bleu attended the event. Vanessa Hudgens: Vanessa Anne Hudgens (born December 14, 1988) is an American actress and singer.
December 14, 1988