1. Harry Styles, 'Harry Styles'
It's tough enough to launch a solo career after being in one of your generation's biggest pop groups, but Harry Styles went the extra step to go against the grain of current pop itself with his debut album. Always the biggest Fleetwood Mac fan, Styles channeled Seventies FM rock and folk for his self-titled LP, working with Jeff Bhasker and creating a moody, rootsy tale of jet-setting romance and heartbreak across raucous rockers like "Kiwi" and soft-spoken strummers like "Ever Since New York." In the end, Styles created a masterpiece mature beyond his 23 years.