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.

A source told the Daily Star Sunday newspaper: ''The album is written, recorded and finished. Theoretically it could be released tomorrow if she wanted.''

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 insider added: ''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 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.