Greek-Welsh singer Marina Diamantis — previously known as Marina and the Diamonds and now just Marina — has been a presence on the pop scene for 15 years, first rising to prominence as the runner-up (behind Ellie Goulding) on the BBC’s “Sound of 2010” poll. She quickly signed a deal and dropped three albums in quick succession over the next five years, becoming a chart success in her native U.K. and doing era-specific things like opening for Katy Perry and Coldplay, having a strong Tumblr presence and getting into a Twitter beef with her friend Charli xcx in 2016 (they’ve since made up).

She’s maintained a steady presence over the years, but her new album, “Princess of Power,” is something very different — a sound and image redefinition and revitalization that seems defined by a lyric

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