AdvertisementOpinionRemembering Annette Charles, a.k.a. Cha Cha, 'The Best Dancer At St. Bernadette's'August 06, 2011Maria GodoyfacebookEmailAs Cha Cha DiGregorio, the bad girl with the best moves, Annette Charles burned up the dance floor with John Travolta in Grease. (Photofest)