She’s put out only two albums, but one of them, 2011’s 21, is the record industry’s one true “old-school” blockbuster of the last several years. The success of 21 is truly historic: More and more, it seems impossible that another album will move more than 10 million copies like 21 has. Adele is set up to have a career that just goes on forever — she appeals to people who don’t normally follow pop music that closely, which is the single biggest audience a performer can reach.Whether Adele ever tops 21 is beside the point; her kind of stardom is not predicated on being on the cutting edge or remotely trendy. Whatever she does, Adele will always be the woman who made 21.