A few weeks ago, Post Malone released his video for "Pour Me a Drink" with Blake Shelton . . . and now Blake is sharing some behind-the-scenes footage on social media.

It looks like it was a blast.  In the clip, Blake jokes about it being a huge party . . . and that it was 10:00 P.M., and they weren't even CLOSE to being done with filming.

 

 

 

 

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A post shared by Blake Shelton (@blakeshelton)