The 25-year-old singer took to Instagram over the weekend to document his time at the Coachella Valley Music And Arts Festival in Indio, California, where he hung out with his wife, Hailey Bieber, and took in some incredible performances.
One of the sets the couple enjoyed was Billie Eilish, with Hailey writing that the 17-year-old singer "slays." Justin even posed for a pic with Billie, whom he met for the first time at the music festival after she was open about being a longtime fan of the "Sorry" crooner.
In the pic of the pair, Billie wore a blue Louis Vuitton look and had her hand over her face in awe, while Justin posed with his arms crossed in a pink sweatshirt, basketball shorts and a blue baseball cap.
"So this happened," Justin captioned the photo. "Long and bright future ahead of you."
Justin's manager, Scooter Braun, shared an adorable video of the meeting. In the clip, Billie initially seems stunned to see Justin, before she walks over and gives him a hug that lasts for more than 30 seconds.
Justin also tweeted about her set, writing, "Proud of you @billieeilish."
The praise and pic come less than a month after ET's Katie Krause caught up with Billie, who revealed that, though she hadn't met Justin, he once slid into her DMs.
"I mean, Justin Bieber did!" Billie said of him previously contacting her on social media, adding that fans will have to wait to see what he sent her when he finally followed her back on the social media platform. "One day you'll find out, but that s**t was crazy."
"The first thing he sent was a screenshot of a DM I sent him in 2014," she shared. "You know how when you follow somebody, you can see everything they DMed you in the past? It, like, it felt good and it felt bad at the same time."
Billie also said that she's been a fan of Justin since she was 12, even admitting to having "big a**" posters of him on her wall.
"He's amazing," she gushed. "He's so sweet and, like, I feel -- just, honestly, I feel for him, man. He's been through a lot, dude."
When he wasn't hanging out with Billie at Coachella, Justin, along with Hailey, spent some time with their mutual friend Kendall Jenner. In a pic that Justin posted to Instagram, the girls are in their most festive styles, with Hailey rocking a spaghetti-strap sparkly silver dress and Kendall opting for a matching black-and-white crop top and jeans. Both models are representing Justin's new fashion line with matching Drew House bandanas covering their faces.
The pop star also took in the performance of another famous friend, Jaden Smith. The son of Will and Jada Pinkett Smith wowed the crowd with a showstopping set, which he described on Instagram as the "best moment" of his life.
"Proud doesn't begin to describe how I feel," Justin captioned a post of the performance on his Instagram Story.
Watch the video below for more on Justin.