British soul singer Adele confirmed via Twitter she has recorded the theme song for the James Bond picture, \"Skyfall,\" due in theaters this fall. Rumors have been swirling for months that the Grammy Award-winner would sing the eagerly awaited song which will open the 007 film. The BBC said she posted a snapshot of the song credits on her official Twitter page during the weekend, confirming the speculation. A photo of the songstress also appears to be the cover page of sheet music for the \"Skyfall\" theme, the British broadcaster said. Starring Daniel Craig as the suave secret agent, the film is to open in the United Kingdom this month and the United States in November.