Full subtitle: The Soundtrack from Her Television Special with Special Guests Dean Martin, Lee Hazlewood, and a very close Relative.
The “very close relative,” of course, would be dad (and Reprise label CEO) Frank – perhaps not credited by name for legal reasons?
Dean Martin takes a duet on “Things” and Frank takes “Younger Than Springtime” – Nancy and Lee on “Some Velvet Morning” and “Jackson.”
The special, which aired Dec 11th 1967, was also called Movin’ With Nancy and you can find clips from it on YouTube. The duet with Sammy Davis Jr on “What I’d Say” is said by some to have included the first interracial kiss on US television.
My copy via Beverly Coin & Jewelry.