Purple Rain Cocktail

To make a Purple Rain Cocktail:

In an iced colling glass, pour 1/2 oz Vodka, 1/2 oz Gin, 1/2 oz Rum, and 1/2 oz Chambord. Fill the remainder of the glass with Sour Mix (leaving approximately 1/4 inch of space at the top of the glass). Pour contents of glass into mixing tin and shake. Pour contents of mixing tin back into collins glass. Top with Sprite/7-UP. Serve.