03 Apr 2013 --- Pinnacle Vodka, the fast-growing premium vodka brand in the Beam Inc. spirits portfolio, has introduced its newest flavor innovation to the market just in time for spring and summer—Rainbow Sherbet. An inventive rendition of a classic dessert, Pinnacle Rainbow Sherbet combines the zesty, citrus taste of orange and sweet lime with a creamy raspberry that evokes a nostalgic feel of summer memories.