"Islands in the Stream"
From Tardis Wiki, the free Doctor Who reference
"Islands in the Stream" was a song sung at karaoke night in the 48th century at a bar on Anteria XVI Cordobane when the Eleventh Doctor visited with River Song and Jim the Fish. (GAME: The Eternity Clock)
Behind the scenes
"Islands in the Stream" was written by the Bee Gees and originally sung by Kenny Rogers and Dolly Parton.