Sam Smith dropped the biggest hint yet that he's recorded the new James Bond anthem.

The 'I'm Not the Only One', who has long been rumoured to sing the theme song for 'SPECTRE', seemingly confirmed the news by posting a picture of him wearing a ring emblazoned with the logo of the titular crime organisation seen in the film.

The ring's symbol is synonymous with evil group SPECTRE, which stands for Special Executive for Counter-intelligence, Terrorism, Revenge and Extortion.

Sam, 23, follows in the footsteps of Adele, whose 2012 song 'Skyfall' - recorded for the film of the same name - won an Oscar for Best Original Song.

The Grammy Award winner recently denied he'll be lending his soaring vocals to the song.

Asked on BBC Radio 2 whether he's currently working on the 007 music, he said: ''That's not me. That's definitely not me. I've still got loads to do, I've got an Australia tour, but I kind of finish in December which is great, it gives me a chance to be in London, be in my home and go out with my friends.''

'SPECTRE', starring Daniel Craig and directed by Sam Mendes, is due for release next month.