guess who

This young lady has become a world known celebrity in an amazingly short time!
She's beautiful, athletic & down to earth ... She was married for only a couple of years, then she got divorced, stop believing in marriage & started dating her co-star!
She's very active in humanitarian issues ... wanted to devote her life to foreign missionary!
Oh! One more thing, she's got an amazing ability to climb trees!
Don't think too much about it ... or you'll get lost!