There are several artists with this name:
1) Marina Lambrini Diamandis, known mononymously as Marina and previously by the stage name Marina & the Diamonds, is a Welsh singer and songwriter.
Born in Brynmawr to a Welsh mother and Greek father, Diamandis was raised in Abergavenny and moved to London as a teenager to become a professional singer, despite having little formal musical experience. In 2009, she came to prominence upon placing second in the BBC's Sound of 2010. Read more on Last.fm