Matthew Wilder is an American singer, musician, and record producer. In early 1984, his single "Break My Stride" hit No. 2 on the Cash Box chart and No. 5 on the Billboard Hot 100. He also did the singing voice for Ling in the Disney animated feature film Mulan and wrote the music for the songs featured in the movie.And David Joel Zippel (born May 17, 1954) is an American musical theatre lyricist, director and producer.

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