I know it's hardly surprising that C.Fred would once again butt in in areas about which he has no clue, but if he put his ego aside for a second and did some actual research, he might find the source of the entry and add it himself. http://northside.whereilive.com.au/news/story/sister-act-the-rancans-at-it-again/  (refer to paragraph 8)  .  Not to mention that these ladies were famous throughout Australia before Wikipedia was even a pipe dream. 

You know Fred, some of would actually like to contribute to Wikipedia without being harassed. You should examine your motives and try to act like an adult.