Cantonese opera masters Kar-Ying Law (C), Yau Sing-po (L) and Chan Ho Kow introduce their new opera at a press conference for 2013 Chinese Opera Festival in south China's Hong Kong, April 11, 2013. The festival will be held from June 20, 2013 to July 28, 2013 in Hong Kong, with top troupes showcasing the splendour of different varieties of traditional Chinese opera. (Xinhua/Jin Yi)