Rising country star Kelsea Ballerini knows what a good time sounds like—which is why Apple Music asked her and Thomas Rhett, her two-time CMA Fest cohost, to put together this exclusive playlist of made-for-summer songs. "From country to alternative, from getting day-drunk to feeling good as hell," she says, "these are the songs that make me want to drive around Nashville in the summertime with my windows down." Adds Rhett, "These are all over the place—some current, some throwback, some R&B, some country—but they all move me in a different way."