Scotty McCreery croons for ‘Duck Dynasty’s’ Sadie Robertson

The “Duck Dynasty� clan is getting closer to an off-screen friend: Scotty McCreery.

The country crooner and “American Idol� winner has been hanging out a lot with the family Robertson, whose bearded patriarchs waded to fame on A&E;’s reality smash.

On Monday, McCreery revealed on Twitter that he’ll join the clan for a “Duck Cruise� tour that will hit Key West and Cozumel next summer.

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Two weeks ago, “The Trouble With Girls� singer was the surprise entertainment at the 16th birthday of Sadie Robertson, the daughter of Duck Commander owner Willie Robertson. He serenaded Sadie with his hit, “See You Tonight.�

Sadie tweeted a photo of herself with McCreery after the family went mudding, adding: “This boy made my birthday the best day of my life!�

Must be nice to have a dad who can wangle a top-selling recording act for your birthday party.

At the moment, it’s unclear whether McCreery will turn up in future “Duck Dynasty� episodes. But the lad does seem eager to get to know the Robertsons, and that’s giving fans something new to talk about.

“See You Tonight.� Hmm.

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Twitter: @scottcollinsLAT

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