He started his first band, "Subway Band" (地下铁) in high school and began performing on stage in 1983. A year later, he released his first album, which topped Singapore's record charts for Mandopop. Subsequently, he launched his singing career in the Republic of China (Taiwan). Since then, Moo has released more than 40 albums in Mandarin and Cantonese, and performed in over 40 concerts.
During the 1980s and 1990s, Moo was part of the xinyao movement and his peers included Lee Wei Song, Lee Shih Shiong, Billy Koh and Liang Wern Fook. One of his more memorable songs is "Kopi O" (咖啡乌), which he performed himself for the popular SBC 1985 drama series The Coffee Shop. At the Star Awards 2007 anniversary special, he revealed that he had insisted on using the term "kopi o" in its original Hokkien rather than transliterating it into Mandarin according to the Speak Mandarin Campaign regulations.
In early 2006, he shifted his focus to the mainland Chinese market. He held his most recent and controversial concert on the 27th of May 2012 in Singapore Suntec Center. He sang only 2 of his own songs and decided to spread Christianity for the rest of his concert, sparking fury in many fans young and old.
^Billboard - 1994 12 10 p45 "His second Mandarin album for EMI, "Tai Sha," stole the spotlight from Cheung and Lau as the biggest-selling Chinese album of 1994. It brought two Solid Gold awards from Hong Kong's tastemaker TV station, TVB, and the album's title track "Tai Sha" dominated Taiwan's charts from March to June, and helped push Moo's Cantonese-dialect compilation album, "Too Silly," and a new release, "Sad Love Songs," into Hong Kong's top 10. A new Mandarin album, "Puppet Of Love," .