Lana Del Rey ’s bayou boo clearly knows how to stir the fun -- the singer was all smiles with husband Jeremy Dufrene in L.A.

Check it out -- Lana and her alligator-loving hubby were far from the bayou, spotted leaving hotspot Chateau Marmont after a night out Tuesday ... and clearly living their best, totally unbothered lives. Backgrid

Lana, rocking a laid-back look, was throwing playful faces at the cameras in the passenger seat while Jeremy sat behind the wheel -- totally radiating love and good energy.

The songstress also worked the crowd, signing autographs and just soaking up the low-key fun all night. Gallery Launch Gallery

It was sweet seeing Jeremy fully immersed in Lana’s world ... especially after all that Southern swamp time together.

Remember, Lana and her bayo

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