Matthew McConaughey Works His Bulging Birthday Biceps

Matthew McConaughey got in a workout while his daughter, Vida, was in the good hands of her grandmother, Camila's mom, in Malibu today. He's apparently trying out a new Brazillian martial arts workout to help keep him fit as he turns 41 today! The birthday boy has plans to party this weekend, but he spent the morning with his family. Matthew's back home in California after traveling from Austin, TX, to support his alma mater and then to China, where he participated in a golf tournament. He took a break from the links for a kid-free, fancy night out on the red carpet with Camila Alves while the couple were overseas.

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