13. Hollie Cook “Postman”
We’re convinced that Hollie Cook is a superstar, but she hasn’t had that single to bring her there yet. “Postman” won’t make her one—it’s a trippy, unusual thing with steel drums, strings and Indian tabla—but it’s arguably her best and most extravagant single to date, and the gorgeous video is just one more reason to become infatuated with this Lovers Rock chanteuse. —Jesse Serwer