What was the official single off of  Marina and the Diamonds' album which transitioned the band from new wave to electropop?
Electra Heart:  Diamandis collaborated with producers including Liam Howe, Greg Kurstin, Dr. Luke, Diplo and StarGate during its recording, and subsequently transitioned from the new wave musical styles seen throughout her debut studio album, "The Family Jewels" (2010).
i don't know