Article continues below advertisementOzzy Osbourne went to his grave with plans for a new album still alive in his mind - a final burst of creative intent that fans will now never hear and that those closest to him tell OK! has left admirers devastated by what might have been.The Black Sabbath frontman passed away at age 76 in July after a grueling battle with Parkinson's disease, only weeks after reuniting with his bandmates for a major hometown concert in Birmingham, England. His show, billed as a historic return, now stands as Osbourne's final performance.