Aviators inflate a hot air balloon during the Lubao International Balloon and Music Festival 2019 in Pampanga Province, the Philippines, April 5, 2019. The annual Lubao International Balloon and Music Festival takes place here from April 5 to 7, featuring musical performances, fireworks displays, more than 30 local and international hot air balloons and a wide variety of aerial activities. (Xinhua/Rouelle Umali)