Cameron Drops The Mask!

Cameron Diaz was always pretty dependably downcast whenever we'd run into her with Justin Timberlake - so imagine our surprise to catch her smiling as she left the gym earlier today! And this wasn't some shrugged-off smirk, either - the notoriously reticent actress almost seemed happy to see our guys!

Maybe we've been too hard on Cameron all these years - hell, these pictures even have us wondering if Justin might have been the source of all her sourness!