Two couples show their group photos at the marriage registration office in Jiangbei District of Chongqing, southwest China, Jan. 4, 2013. Many couples here rushed to tie the knot on Jan. 4, 2013, or 2013/1/4, which sounds like "Love you forever" in Chinese.

A couple pose for a photo at the marriage registration office in Changchun, capital of northeast China's Jilin Province, Jan. 4, 2013. Many couples here chose to tie the knot on Jan. 4, 2013, or 2013/1/4, which sounds like "Love you forever" in Chinese.