Marina alerted fans to the cover via Twitter, writing, "Happy New Year to you all. I recorded a cover of a @CyndiLauper song. Here it is."
Marina and the Diamonds
From Marina and the Diamonds to Hilary Duff -- these are our picks for the best lyrics of 2015.
From Lana's giant gun to CL's crew of bad bitches, these are the visual spectacles that wowed us the most in 2015.
The songs we listened to and loved the most this year, from Justin Bieber, Fifth Harmony, Fetty Wap and more.
Britney didn't release an album in 2015 — but if she did, these are the songs she should have recorded.
Not everyone got their fair share of recognition from the 2016 Grammys nominations. Who was most snubbed?
From Grimes to Madonna to Joanna Newsom, these are the albums that defined our 2015.
From Marina and the Diamonds to the boys of One Direction, which of this year's releases deserves to be named PopCrush's Album of the Year?
Charli XCX is gearing up to release a documentary, titled The F-Word and Me, that explores what it's like to be a woman in the music industry.
If you don't have the chance to see Marina and the Diamonds live fear not: Yahoo! will broadcast tonight's show (November 4) live from Boston's House of Blues online.