Jennifer Lawrence Gets Birthday Wishes From On-Screen Sis

Unsurprisingly, we weren't the only ones to wish "The Hunger Games" starlet Jennifer Lawrence a happy birthday today. And perhaps the most adorable message came from her on-screen sis, Willow Shields, who plays Prim in the film franchise.

We can't help but wonder now how District 12 is planning to celebrate...

Leave your birthday wishes for JLaw in the comments!