How did Adele sell more than 4 million albums in two weeks? By captivating and energizing a "diaper-changing, lunch-packing" female audience that most artists and labels typically ignore.

As Adele continues to ­obliterate modern sales records, we need to look outside the music ­business to find ­parallels for her dominance.

To whom should we compare her? Barry Bonds hitting 73 home runs, 12 more than the previous record? Squash star Jahangir Khan, who won 555 matches in a row?

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