We bet you can't sit through baby Lachlan's laugh attack and still keep a straight face. It seems like everything mom Briana Kortbein does makes him crack up!<br /><br />Keep it up kid, the world needs more gigglers like you.<br /><br />If you're still looking for pick-me-ups, you can't miss Dani's hilarious reenactment of "Five Little Monkeys." Her comedic timing's impeccable!
