We belieb that talent must run in the Bieber family.

On Saturday (Oct. 31), Justin Bieber shared a quick video of himself jamming out on his trusty acoustic guitar with father, Jeremy Bieber.

In the vid, Biebs wordlessly plucked away at the strings while the elder JB chipped in with the rhythm (which makes sense because Bieber's dad pretty much always has his back).

And while we would've preferred to hear a little sing-song accoutrement to this melodic sesh -- like that epic "Sorry" rendition he shared last week and the "What Do You Mean" live version that came before that -- it's still always fun to watch Bieber get in his ~inspired~ guitar zone. 'Cause look at him go!

Next step? Getting BB Jaxon and Jazmyn in on the fret-tastic family fun! (We suspect it's just a matter of time 'til their musical gift-y genes start to shine through.)