Who wrote the song sung by Cantonese in first act of Les Rose Laurens?
Rose Laurens: Rose Laurens, previously billed as Rose Merryl (born Rose Podwojny on March 4, 1953), is a French singer-songwriter, particularly famous for her 1982 smash single "Africa", number three hit in many European countries. I Dreamed a Dream:  It is a solo that is sung by the character Fantine during the first act.
Rose Merryl