After landing the role of Hermione in the "Harry Potter" films back in 2001, Emma Watson has spent more than half her life in the Hollywood spotlight and she doesn't appear to be slowing down any time soon. The bright and beautiful Brit was just 10 years old when she got the big break, and this week she celebrated her 25th birthday on April 15th. Emma has not only impressed audiences with roles in films like the "The Bling Ring" and "The Perks of Being a Wallflower," she's also grown up to be an academic, activist, and terrific role model. Cheers to this inspiring young actress! Let's take a look back at her life so far in pictures for this week's #TBT.