Drawing on her background as an actor, Canadian singer MacKenzie Porter brings a dynamic pageantry to classic country music tropes, making her brand of pop a joy to listen to even when she’s tackling sad subjects. Since the 2010s, she’s done heartbreak with an upbeat flourish (“Drinkin’ Songs”) and found a way to turn a nostalgic trip down memory lane with an old lover into a stadium-sized, piano-powered smash on “These Days.” The giddy twang of “Rodeo,” meanwhile, gives her a chance to flex some attitude, shooting down tired pickup lines with fiery, staccato rebuttals.