If there's one thing Brad Pitt knows, it's kids!

So when the proud father of six heard Kim Kardashian and Kanye West had given birth to their first child this weekend, he offered some valuable advice for the new parents!

Brad was walking the red carpet at the New York premiere of World War Z when he told the mommy and daddy in training you can never have too many kids:

Read more »

[Image via Dan Jackman/Lia Toby/WENN.]