The bromance was sparked after Bieber was seen sporting a Mansont-shirt while performing at a concert on his Purpose tour.
In response, the controversial rock persona posted a photo of himself wearing a Bieber t-shirt with the caption: "Bigger than Bieber" a pun on his own merchandise that reads "Bigger Than Satan".
And then the stars aligned, literally.The pop singer and shock-rocker bumped into each other on a "night out in LA" and posed for a quick black and white selfie.
"Night out in la with the boys," Bieber captioned the pic on his Instagram account.