Performers are seen at a new year's countdown concert in downtown Dublin, Ireland, Dec. 31, 2018. New Year's Festival Dublin, an overnight celebration organized by local authorities, featuring a countdown concert, a display of fireworks and a light show, was held here on Monday night, attracting tens of thousands of local people. (Xinhua)

People are seen celebrating at a new year's festival in downtown Dublin, Ireland, Dec. 31, 2018. New Year's Festival Dublin, an overnight celebration organized by local authorities, featuring a countdown concert, a display of fireworks and a light show, was held here on Monday night, attracting tens of thousands of local people. (Xinhua)

Artists perform at a new year's countdown concert in downtown Dublin, Ireland, Dec. 31, 2018. New Year's Festival Dublin, an overnight celebration organized by local authorities, featuring a countdown concert, a display of fireworks and a light show, was held here on Monday night, attracting tens of thousands of local people. (Xinhua)

People pose for photos at a new year's festival in downtown Dublin, Ireland, Jan. 1, 2019. New Year's Festival Dublin, an overnight celebration organized by local authorities, featuring a countdown concert, a display of fireworks and a light show, was held here on Monday night, attracting tens of thousands of local people. (Xinhua)