joseph dolce (born 13 october 1947) is an american-born australian singer-songwriter, poet and essayist. he had international fame with the 1980 hit song "shaddap you face". the song sold millions worldwide was released under the name of his one-man show called joe dolce music theatre. "shaddap you face" was charted at no. 1 in many countries including australia, france, germany, new zealand and the united kingdom. it is australia's most successful single in terms of sales (450,000 units as of 2013).