Happy 39th birthday to the fabulous Kat Dennings! It's hard to believe that the hilarious and talented actress, known for her role on "2 Broke Girls", is another year older. But let's be real, age is just a number and you definitely don't look a day over 29. Here's to another year of slaying on the big and small screens, while also maintaining your signature witty humor. Cheers to you, Kat! Keep being the amazing person you are. Happy birthday!