Very much like her new husband, Regina Lasko is largely an enigma.

Little is known about the new Mrs. David Letterman, though this much we can confirm.

The pair, Letterman said on his show, began dating 23 years ago.

Lasko, 49, used to work as a Late Show staffer. She gave birth to Letterman's son Harry in November 2003, and the couple share a Montana ranch as their primary residence.

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• Regina Lasko