I'm at McDonald's global headquarters to taste refreshers, dirty sodas, and other cold beverages that the chain is rolling out to US restaurants soon. McDonald's in May is launching six drinks, including refreshers with frozen strawberries, a bright blue Sprite berry blast, and dirty Dr. . Pepper with cold foam.And >> we're here today to debut our strawberry watermelon refresher. It's our delicious drink ready for the summer. It's got a real strawberry watermelon puree in it that we add a little lemonade to ...