Diageo, the liquor giant behind Johnnie Walker, Crown Royal and Don Julio, has bought the ready-to-drink cocktail brand Loyal 9 from Sons of Liberty Spirits Company. Top line Loyal 9 was founded in 2018 and is a vodka-based drink available in flavors such as lemonade, mixed berry lemonade, and watermelon lemonade. Diageo paid for the acquisition …