Combine 1½ ounces LiDestri Pink Lemon Liqueur, 1 ½ ounces vodka and 2 ounces sweet and sour into a shaker tin with ice. Shake hard to break up ice into fine crystals. Strain and pour into martini glass. Slowly pour grenadine into glass (to create layers). Top off with champagne. Garnish with lemon slice.