Before file-sharing, piracy and mp3s, selling 10 million albums was a daunting feat. Now, it's next to impossible. Which makes Pearl Jam's recent accomplishment of selling more than 10 million copies of their 1991 debut Ten that much more remarkable. Only 23 other albums (including Adele's unstoppable 21) have surpassed the mark since 1997 (and we're not counting double albums like Biggie's Life After Death, which sold five million, but were counted as 10). To celebrate the singer's feat, we've compiled the biggest-selling albums of the past 15 years. Some you may know; some might surprise you.
First up: Shania Twain's 1997 opus Come On Over. The country-pop star sold more than 20 million copies of her third album, making this one of the most successful albums of all time.