Pitbull’s “Hotel Room Service” belongs on club dance floors or blared out of car speakers — really anywhere you can scream, “Hotel, motel, Holiday Inn!” at the top of your lungs. In almost every way, it’s the polar opposite of a tender ballad about lost love. But Camila Cabello thinks it belongs in one of those, too. Her fourth album, C,XOXO, is full of left turns — a Charli-via-Gucci pivot on lead single “I Luv It,” two whole Drake appearances ...