Matthew McConaughey girlfriend Camila Alves welcomed a baby boy into the world Monday night.

No word on the child’s name yet, but remember when rumors were abound about Matthew wanting to name it ‘Bud’?  He’s a fan of the beer, and his older brother actually named his kid, ‘Miller Lyte’.  Heh.  I prefer ‘Arrogant Bastard’ myself . .

Oh yeah, Matthew’s bro’s name is ‘Rooster’ - so you see where they get it!

Little Bud (let’s just call him that until we know) was born at 6:22 PM in Los Angeles and weighed 7 lbs., 4 oz.

This is the first child for both.