Britney Spears managed to make Summer a bit hotter last month when she released her new song, "Make Me. . .," but thankfully, that was just the beginning. After taking to Instagram in early August to reveal the sultry cover for her new album, Glory, the wait for the slew of undoubtedly more No. 1 hits is finally over! Glory dropped on Thursday night, and with it came songs like "Slumber Party," "Just Luv Me," and "What You Need." The sound is the perfect mix of the beats Britney has been known for since the beginning and her newer, edgier sound. For more Britney, check out her killer performance of some of her greatest hits and her hilarious Carpool Karaoke session with James Corden.