Fei Xiang has only sung excerpts from "Phantom of the Opera" at Weber's tour concerts, and four excerpts from "Phantom of the Opera" on his "Broadway Classics" album.

In 1993 and 1995, Fei Xiang collaborated with Sarah Brightman on All I ask of you during Weber's two concert tours in dozens of cities across the United States.

At the 2001 Weber China (Beijing, Shanghai) tour concert, Fei Xiang collaborated with Sophie Viskich on Phantom of the opera and soloed Music of the night.