18 Months simultaneously made Calvin Harris a superstar while launching a thousand earworms. Tracks like “I Need Your Love” and “Sweet Nothing” are packed with slick, industrial-sized synths and schoolyard-ready melodies, but vocals from Rihanna, Ellie Goulding, and Ayah Marar work to put the package over the top. Check out "We Found Love" for some romance beneath the sparkle, and the vivid, melodic “Thinking About You” for a splash of Ibiza waves.