Wahlberg and Bieber Now That's a Package Deal!

10/8/2015 10:12 AM PDT

Mark Wahlberg and Justin Bieber Meet on the Street ... Now That's a Package Deal! (VIDEO)

It's like the Obi-Wan and Luke Skywalker of men's undies coming together -- Mark Wahlberg and Justin Bieber ... chilling in Bev Hills ... fully clothed. Sorry.

Bieber -- fresh off the jet from Bora Bora -- was strolling with Hailey Baldwin on Wednesday when they bumped into Wahlberg. Mark gave Justin a few attaboy taps on the shoulder during their brief chat, but we have no clue what they bro'd down about.

Of course, they both famously modeled Calvins -- 20-something years apart. We'd like to imagine JB said something all Star Wars-y like, "Now I am the master!"

But we know that didn't happen ... 'cause Wahlberg woulda knocked him out.