Justin Bieber I'm Not Workin' for the Weeknd

1/21/2017 7:25 AM PST
EXCLUSIVE

Justin Bieber made it crystal clear ... he and The Weeknd are on opposite sides of the battle lines.

We got the Biebs leaving Delilah in WeHo Friday night, and forget friendship ... he can't even stomach Weeknd's music.

Not surprising ... Justin and Selena were a thing for years, so the latest romantic configuration clearly doesn't sit well.