Chris Bosh -- Photobombs McConaughey ... On Emmys Red Carpet

Chris Bosh has struck again.

For some reason (we're still trying to figure this out) the Heat star decided to attend the Emmys with his wife last night ... and decided to amuse himself by photobombing one of the most famous actors in the world, Matt McConaughey.

Of course, Bosh is somewhat of a photobombing pro ... the guy targeted teammates during post-game interviews almost every week last season.

But don't worry, Bosh showed off his fancy side too -- showing off his white jacket (with a white Rolls to match) before the awards.

Ballin'.