Beyonce guarded her new album Production.

Singer Beyonce Knowles is being very guarded about her next album and she is holed up in a studio here to work on it.

For her next album, Knowles is collaborating with Kanye West, as well as with her husband Jay-Z's producer Hit-Boy. The singer is taking no chances for the album, and does not want her material being leaked, reports source.

"She's spent thousands hiring out the whole studio. She's got security on the doors to ensure no one hears a whisper. She's being strict with proceedings too, putting in 14-hour days declaring nobody leaves until it's perfect," said a source.