The album has sold over 6,000,000 copies worldwide , making it Ozzy 's best-selling album to date .
The tracks Crazy Train and '' Mr. Crowley '' were released as singles .
The tracks Crazy Train and '' Mr. Crowley '' were released as singles .
为简单起见重写这句话: The album has sold over 6,000,000 copies worldwide , making it Ozzy 's best-selling album to date . 输出: