Justin & Hailey Bieber Meet French President Emmanuel Macron - TMZ

Justin and Hailey Bieber are taking in the sights in France ...

and they're also apparently taking high-level meetings, with none other than the guy who runs zi freakin' country.

The Biebers are taking Paris to kick off their week -- grabbing grub, looking good and dressing to the nines for their outings, especially on this particular occasion Monday ...