Mark Williams (born 17 November 1953) is a New Zealand singer with Recording Industry Association of New Zealand (RIANZ) number one hit singles, "Yesterday Was Just the Beginning of My Life" (1975) and a cover of Buddy Holly's "It Doesn't Matter Anymore" (1977) before he relocated to Australia later that year.His single, "Show No Mercy" (1990) was a top ten hit in both countries.He has undertaken extensive touring in support of numerous Australian bands and worked in television.In 2006 he became the vocalist for the reformed New Zealand/Australian band, Dragon.