The newest addition to the Skinnygirl Cocktails Ready to Serve family of products is a cream-free, low-calorie version of a Piña Colada, a drink that can have more than 800 calories. Sticking with the Skinnygirl theme, the RTD Piña Colada offers consumers a cocktail for less than 100 calories per 4-ounce serving. The new addition will be available in May 2012 and joins other flavors including Margarita, Sangria and White Cranberry Cosmo.