RIPCORDAs something of an outsider to Nashville, Keith Urban has the latitude to experiment, an opportunity he seizes with 2016's Ripcord. The album's very title suggests he's diving into the great wide open and he makes no attempt to disguise the record's heavy hip hop and electronic influence. "Sun Don't Let Me Down," a collaboration with Nile Rodgers featuring a verse by Latin superstar rapper Pitbull, is merely the culmination of all these inclinations,