This is what I had found on the net with regards to the "Butterfly Lovers", performed by Wang Zhiping and Zhao Zhigang. This is quite an unsual pairing, because this show in Yueju is usually performed by Fan-styled xiaosheng with Fu-styled or Yuan-styled huadan, and at times by Xu-styled xiaosheng with Wang-styled huadan; but having the role of Liang Shanbo being sang by an Yin-styled xiaosheng is not what I've ever heard of. Well, actually it made no difference, after watching this clip, since the actors themselves are not singing Yueju, but in Mandarin along with the Yueju-styled "Butterfly Lovers" violin concerto music.
How do you find it? To me, I may like Wang Zhiping, but then again this performance is not something I can really stomach. They sounded simply too odd in this clip!
Here is another clip, by Wang Zhiping again, but this time Huang Hui as Liang Shanbo. Still on the theme of using music from "Butterfloy Lovers" violin concerto, it sounded much better, since they're singing in their native Zhejiang dialect. However, there's completely no sense of any style of singing for the actors already. That is, Wang Zhiping totally don't sound Wang-styled, and Huang Hui no longer sounded like Lu-styled.