British pop quartet Coldplay are nearing the completion of their fourth studio album, to be out sometime in 2008.

"It feels like a very dense record," said lead crooner Chris Martin, according to Billboard.com. "There are so many melodies and colors packed into a relatively short space."

According to the fair-haired songbird, two new songs, "Famous Old Painters" and "Glass of Water" are now in production and will join the list of previously announced ditties that includes "Lost," "Cemeteries of London," "Violet Hill," "Poppy Fields," and "Rainy Day."

Martin says the album is full of "experimentation and exploration," hopefully not code for "I'm going to let my wife, Gywneth Paltrow, sing backup for a few songs."

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