Combine vodka, apricot brandy, lemon juice, and Grenadine in a cocktail shaker. Fill half full with ice. Shake until cold, about 30 seconds. Pour into a champagne glass and top with champagne. Serve immediately.
Place all ingredients in a blender and blend until smooth. Pour into glasses and serve immediately. If serving later, you can freeze and re-blend when ready to serve or refrigerate and serve with ice. Makes about 4 cups.