What was the official single off of  Marina and the Diamonds' album which transitioned the band from new wave to electropop?
Primadonna (Marina and the Diamonds song): "Primadonna" is a song by Welsh singer-songwriter Marina and the Diamonds from her second studio album, "Electra Heart" (2012). Electra Heart:  Their efforts resulted in a concept album inspired by electropop music, a distinct departure from her earlier projects.
i don't know