Adele has finished work on her third album.

The "Skyfall" singer has been busy in the studio, and fans won't have to wait long for her much-anticipated new record with reports it has been completed and is ready for release.

"The album is written, recorded and finished. Theoretically it could be released tomorrow if she wanted," a source said.

It is said Adele and her label are considering bringing out the album with little fanfare and no "publicity campaign," in a similar way to how Beyonce released her self-titled record earlier this year. "The plan is to release internationally on iTunes as a complete surprise without any previous promotion or build-up publicity campaign. The shock tactics worked amazingly well for Beyonce and the feeling is Adele's new album is so widely anticipated it doesn't need a long promotional build-up," the insider added.

The project is still being kept a closely-guarded secret, with no release date set for the album - which will be the follow-up to 21, which sold almost 30 million copies worldwide.