What kind of opera singing styles are used in the pieces On the Plum Side and Huo Yuanjia?

Peking Opera Hua Dan singing voice and Peking Opera Kunqu singing voice. The falsetto in Huo Yuanjia was sung by Jay Chou and utilizes the Peking Opera's Hua Dan singing style. And "At the Plum's Edge" is by Wang Leehom. It is a pop mash-up song that skillfully blends the beautiful singing of Peking Opera Kunqu, Western r&b singing and rap.