Justin Bieber and Marilyn Manson seem to be forming a newfound friendship. The pop star and the rocker have been wearing each other's tour shirts with their faces on them for the past couple of weeks, and on Saturday night, Bieber took to his Instagram account and posted a picture of the two together.

Bieber and Manson took a selfie of the two hanging out in Los Angeles. The photo showed the two musicians making a duck face to the camera and was in black and white.

"Night out in la with the boys," Bieber captioned the picture.

Bieber was in Los Angeles for a two-night gig at the Staples Center for his "Purpose World Tour," which begins on Sunday, March 20. During the tour, Bieber has been wearing a Manson T-shirt that says "Bigger Than Satan" on the back and has his face on the front. This was not the first time that Bieber wore a shirt with Manson's face on it, as the pop star wore a similar shirt at a Hillsong Church conference.

Manson returned the favor earlier this week and took a selfie of him wearing a Bieber shirt. "Bigger than Bieber," Manson captioned the picture, referencing his own tour shirt that Bieber wore reading "Bigger than Satan." Last July, Manson posted a picture of Bieber wearing another shirt with Manson's face on it and captioned the picture, "Preach. Where are you now? Church."

A lot of attention has been on the wardrobe that Bieber wears onstage during the tour. Karla Welch, Bieber's longtime stylist, worked with designer Jerry Lorenzo for the five looks that the 22-year-old wears. Welch describes the style, including the Manson shirt, as "street grunge with a very vintage skater feel."

"I was living in Vancouver during the grunge era -- I used to go down to Seattle to watch Pearl Jam play -- and I always loved how those stoner boys looked," Welch said. "That's what we started doing with the Purpose videos and now with the tour. It's very undone."

All of Bieber's backup dancers are dressed in a similar style, but are they outfitted by Calvin Klein, who Bieber is a spokesmodel for.

A photo posted by Justin Bieber (@justinbieber) on Mar 19, 2016 at 11:38pm PDT