Justin Bieber, Travis Scott -- Call to Action ... Let's Get Drunk!!! (VIDEO)

Justin Bieber and Travis Scott became strange bedfellows at Travis' album release party, rapping about the virtues of getting wasted.

Justin joined Travis for his new album, Rodeo, at Up&Down nightclub in NYC. The reason it's weird ... Justin has really cleaned up his act in the last year ... radically cutting back from excessive drinking and other activities.