Nashville Children’s Theatre has announced its 15th annual Grand Day celebration will be held in conjunction with a “Lyle the Crocodile” performance on Sunday, April 13, in honor of grandparents, parents and children who have made significant contributions to the performing arts of Middle Tennessee. “Over the past few years, Grand Day has evolved into a celebration of all the families who believe the arts are an important part of raising their children,” said Kathryn Colegrove, NCT managing director. “With the performance, a carnival and a King or Queen of Grand Day competition, there is something for everyone.”