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Luann de Lesseps will sit down on Tuesday for her first interview since entering rehab, Page Six is told.

The “Real Housewives of New York” star — who went into treatment back in July — will appear on NBC’s “Megyn Kelly Today” to discuss her recent struggles.

It was the second time de Lesseps has gone to rehab since her Christmastime arrest in Palm Beach, Florida.

Since coming out of a Connecticut facility in early August, she has returned to the stage in her hit cabaret show, “The Countess and Friends.”