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Christina Aguilera and Matt Rutler love their Sunday wine tasting!

The duo hit up BeauRivage in Malibu for some late-night vino. Xtina rocked a skull tee, a red jacket, black leggings and a black wide brim hat. Her beau Matt also kept it simple in jeans and a grey hoodie.

You know what they say ... the couple that drinks together, stay together. Cheers!