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Matthew McConaughey, Camila Alves

Jemal Countess/Getty Images

Looks like Levi Alves McConaughey got to stay out past his bedtime last night.

Instead of hiring a babysitter for their newborn son, Matthew McConaughey and Camila Alves brought their baby along for her Muxo handbag launch party on Robertson Boulevard.

Matt dashed into Kitson first with Levi in a baby carrier, shielding him from the flashbulb frenzy with a blanket.

He then returned to the carpet to take pictures with Camila, who's already looking supersvelte after giving birth.

Once the glowing couple made it inside the party, Matt hit up the bar for a margarita.

And it seems being a daddy might have mellowed out the party guy a bit.

After tasting his drink, he promptly handed it back to the bartender and asked them to add more margarita mix to make it less strong.

He's come a long way from his bongo-playing days!