Katy Perry's producer, Dr Luke recently worked with young artist Marina And the Diamonds for her brand new single "Primadonna" which will feature on their upcoming album Electra Heart, due to release April 30th. The track is actually an upbeat one, fun disco pop anthem completing perfectly with Marina's distinguished vocals which she first unveiled during some live sessions last week: "You say that I'm kinda difficult/ But it's always someone else's fault/ Got you wrapped around my finger, babe/ You can count on feeling misbehaved/ Primadonna girl,/ Would you do anything for me?/ Buy a big diamond ring for me?"