Mario Lopez and wife Courtney Lopez celebrated their daughter Gia‘s third birthday at PLAY in Glendale, Calif. on August 17. Joined by 22 children – and some big kids like Eva Longoria and Kearran Giovanni – guests enjoyed a princess-themed afternoon soiree. And although her birthday isn’t until September 11, Gia’s party was perfectly timed. ”It was such great timing to spoil her with some extra love and attention from our family and friends before her baby brother or sister arrives,” Courtney – who is due this month with the couple’s second child – tells Celebrity Baby Scoop. With a red carpet arrival for the guests, with a banner reading, “Happy 3rd Birthday Gia Lopez,” the party-goers enjoyed…