November 30, 2010 at 04:50 PM EST

Image Credit: Frank Micelotta/Getty ImagesThough he is currently living behind walls of a different kind, T.I.’s “Castle Walls” hit the internet today, featuring a melancholy chorus courtesy of one Christina Burlesque Aguilera that goes, in part: “Everyone thinks that I have it all / but it’s so empty living behind / these castle walls (these castle walls) / If I should tumble if I should fall would anyone hear me / screaming behind these castle walls?”

It’s a mournful, lonely song, the latest in a line of Trust Me, The Platinum Grass Isn’t Any Greener hip-hop confessionals (see also: B.o.B, Drake, Kanye):

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